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Part Number: 106436-12-PKG
Brand: AASCO Motorsports
Upgrade your manual Porsche 987 Boxster or Cayman with a complete AASCO lightweight steel flywheel and Sachs Performance clutch package designed to reduce rotating mass, improve engine response, and refresh the clutch system at the same time. This kit pairs an approximately 19 lb AASCO lightweight steel flywheel with compatible Sachs Performance clutch components for select Porsche 987 Boxster and Cayman manual applications.
Compared to the approximately 27 lb factory dual-mass flywheel setup, this AASCO lightweight steel flywheel removes about 8 lb of rotating mass from the engine. The result is a sharper, more responsive flat-six that revs more freely, responds more directly, and feels more alive during downshifts, heel-toe shifting, and spirited driving.
At DasMotoring, this is one of our favorite upgrades for a manual Porsche. A lightweight flywheel can completely change the character of the car — making it feel sharper, more mechanical, and more connected. If your 987 Boxster or Cayman has started to feel a little too slow or soulless, this is one of those upgrades that can reignite your love for the car and give it some of that 911 S/T-inspired character and flair.
We have run AASCO lightweight flywheels on our own manual Porsches for years through daily driving, traffic, backroad driving, and track use with excellent results.
This complete kit is a great choice for drivers looking for a more responsive, motorsport-inspired feel from their manual 987 Boxster or Cayman while also replacing the clutch, pressure plate, release bearing, and related hardware with a matched Sachs Performance clutch package. The AASCO flywheel is a lightweight steel design, which can be a nice balance for street-driven cars that want sharper response without moving to the lightest possible flywheel setup.
Fitment
Fits select manual transmission Porsche 987 Boxster and Cayman models:
2005–2008 Porsche Boxster, 987 chassis, 2.7L, manual transmission
2005–2006 Porsche Boxster S, 987 chassis, 3.2L, manual transmission
2007–2008 Porsche Boxster S, 987 chassis, 3.4L, manual transmission
2008 Porsche Boxster RS 60 Spyder, 987 chassis, 3.4L, manual transmission, where confirmed
2007–2008 Porsche Cayman, 987 chassis, 2.7L, manual transmission
2006–2008 Porsche Cayman S, 987 chassis, 3.4L, manual transmission
Product Details
Complete AASCO lightweight steel flywheel and Sachs Performance clutch kit
Part number: 106436-12-PKG
Includes AASCO lightweight steel flywheel
Includes Sachs Performance pressure plate: 883082999754
Includes Sachs clutch disc: 881861000017
Includes release bearing and required installation hardware
Designed for select Porsche 987 Boxster / Cayman manual applications
Compatible with select 2.7L, 3.2L, and 3.4L applications listed by AASCO
AASCO lightweight steel flywheel weight: approximately 19 lb
Factory flywheel weight: approximately 27 lb
Approximate rotational mass savings: 8 lb
Complete package weight: approximately 36 lb
Lightweight steel flywheel construction
Reduces rotating engine mass compared to the factory dual-mass flywheel setup
Helps the engine rev faster
Improves throttle response and rev-matching feel
Matched flywheel and Sachs Performance clutch package
Complete kit listing
Driving Feel
A lightweight flywheel reduces rotating mass at the engine, allowing the engine to gain and lose RPM more quickly. The result is a sharper, more immediate connection between your right foot, the engine, and the gearbox. Rev-matched downshifts feel cleaner, throttle blips feel more natural, and the car takes on a more responsive, motorsport-style personality.
Because the flywheel is significantly lighter than the factory dual-mass flywheel setup, some additional drivetrain noise, gear rollover sound, or chatter may be present. This is normal for many lightweight flywheel conversions and is part of the more mechanical driving experience.
The best way to minimize NVH and gearbox chatter is to avoid lugging the engine. Drivers should never lug the engine to begin with, and this is especially important with a lightweight flywheel. Keeping the engine above approximately 2,000 rpm, or selecting a lower gear when climbing hills or accelerating from low speed, will help keep the drivetrain happier and reduce unwanted chatter. The higher the rpm, the less drivetrain chatter and NVH you will have.
Which Version Should I Buy?
AASCO offers several lightweight flywheel and clutch options across the Porsche Boxster, Cayman, Carrera, Turbo, and GT platforms. The correct choice depends on your chassis, engine, transmission, and clutch package.
This listing is for the AASCO 106436-12-PKG complete kit. It is the right choice if you want the AASCO lightweight steel flywheel, Sachs Performance pressure plate, Sachs clutch disc, release bearing, and installation hardware together as a matched package for your compatible 987 Boxster or Cayman manual.
Steel vs. Aluminum Lightweight Flywheel
AASCO offers both aluminum and steel lightweight flywheel options for many Porsche applications.
The lightweight steel flywheel is a good choice for drivers who want sharper response than the factory dual-mass flywheel while retaining a slightly more street-balanced setup than the lightest aluminum flywheel option.
The aluminum flywheel option is generally the more aggressive lightweight choice and may provide the quickest engine response, while the steel flywheel can offer a nice middle ground for street and performance use.
Complete Kit vs. Flywheel-Only
This is a complete flywheel and clutch package. It is the better choice if your clutch is worn, your pressure plate is worn or unknown, or you want the flywheel and clutch components matched together from the start.
Choose this 106436-12-PKG complete kit if:
Your clutch is worn or due for replacement
Your pressure plate is worn, heat-spotted, damaged, or unknown
Your release bearing or related hardware needs replacement
You want everything matched together as a complete AASCO / Sachs package
You are converting from the factory dual-mass flywheel setup to a complete lightweight steel flywheel and Sachs Performance clutch setup
Choose the flywheel-only option instead if:
Your existing clutch and pressure plate setup is compatible and in good condition
You are specifically replacing only the flywheel
Your release bearing and related clutch hardware are already being handled separately
You already know which clutch and pressure plate setup will be used with the flywheel
For the flywheel-only listing, use AASCO part number 106436-12.
If you are unsure which version you need, contact us with your year, model, engine, transmission, and current clutch setup so we can help point you toward the correct AASCO option.
Installation Notes
Professional installation is recommended. However, there are DIY how-to guides linked below if you have the tools and equipment at home.
Before installation, confirm all supplied flywheel, clutch, pressure plate, release bearing, hardware, and related components match the vehicle and intended clutch configuration.
Availability
AASCO Motorsports parts are specialty performance components. Although many items are available from stock, occasional delays may occur if an item is backordered or if AASCO is manufacturing a new batch. If there is a delay, we will provide an updated ETA before fulfillment.
Shipping
Shipping dimensions: 15 x 15 x 12 in
Shipping weight: 38 lb
Part Number: 106436-12
Brand: AASCO Motorsports
Upgrade your manual Porsche 987 Boxster or Cayman with an AASCO lightweight steel flywheel designed to reduce rotating mass and improve engine response. This approximately 19 lb lightweight steel flywheel replaces the heavier factory dual-mass flywheel setup on compatible Porsche 987 Boxster and Cayman models, helping the engine rev more freely, respond more sharply, and feel more alive during downshifts, heel-toe shifting, and spirited driving.
Compared to the approximately 27 lb factory flywheel setup, this AASCO lightweight steel flywheel removes about 8 lb of rotating mass from the engine. The result is a sharper, more responsive flat-six that feels more eager and more connected without moving to the lightest possible flywheel option.
At DasMotoring, this is one of our favorite upgrades for a manual Porsche. A lightweight flywheel can completely change the character of the car — making it feel sharper, more mechanical, and more connected. If your 987 Boxster or Cayman has started to feel a little too slow or soulless, this is one of those upgrades that can reignite your love for the car and give it some of that 911 S/T-inspired character and flair.
We have run AASCO lightweight flywheels on our own manual Porsches for years through daily driving, traffic, backroad driving, and track use with excellent results.
This flywheel is a great choice for drivers looking for a more responsive, motorsport-inspired feel from their manual 987 Boxster or Cayman while staying with a lightweight steel flywheel design. Steel can be a nice balance for street-driven cars that want sharper response and improved rev-matching feel without going to the most aggressive lightweight flywheel setup available.
Fitment
Fits select manual transmission Porsche 987 Boxster and Cayman models:
2005–2008 Porsche Boxster, 987 chassis, 2.7L, manual transmission
2005–2006 Porsche Boxster S, 987 chassis, 3.2L, manual transmission
2007–2008 Porsche Boxster S, 987 chassis, 3.4L, manual transmission
2008 Porsche Boxster RS 60 Spyder, 987 chassis, 3.4L, manual transmission, where confirmed
2007–2008 Porsche Cayman, 987 chassis, 2.7L, manual transmission
2006–2008 Porsche Cayman S, 987 chassis, 3.4L, manual transmission
This flywheel is intended for select manual transmission Porsche 987 Boxster / Cayman applications using a compatible clutch and pressure plate setup.
Product Details
AASCO lightweight steel flywheel
Part number: 106436-12
Flywheel-only listing
AASCO lightweight steel flywheel weight: approximately 19 lb
Factory flywheel weight: approximately 27 lb
Approximate rotational mass savings: 8 lb
Designed for select Porsche 987 Boxster / Cayman manual applications
Compatible with select 2.7L, 3.2L, and 3.4L applications listed by AASCO
Lightweight steel construction
Reduces rotating engine mass compared to the factory dual-mass flywheel setup
Helps the engine rev faster
Improves throttle response and rev-matching feel
Clutch components, pressure plate, release bearing, and related installation hardware are not included unless specifically stated
Driving Feel
A lightweight flywheel reduces rotating mass at the engine, allowing the engine to gain and lose RPM more quickly. The result is a sharper, more immediate connection between your right foot, the engine, and the gearbox. Rev-matched downshifts feel cleaner, throttle blips feel more natural, and the car takes on a more responsive, motorsport-style personality.
Because the flywheel is lighter than the factory dual-mass flywheel setup, some additional drivetrain noise, gear rollover sound, or chatter may be present. This is normal for many lightweight flywheel conversions and is part of the more mechanical driving experience.
The best way to minimize NVH and gearbox chatter is to avoid lugging the engine. Drivers should never lug the engine to begin with, and this is especially important with a lightweight flywheel. Keeping the engine above approximately 2,000 rpm, or selecting a lower gear when climbing hills or accelerating from low speed, will help keep the drivetrain happier and reduce unwanted chatter. The higher the rpm, the less drivetrain chatter and NVH you will have.
Which Version Should I Buy?
AASCO offers several lightweight flywheel and clutch options across the Porsche Boxster, Cayman, Carrera, Turbo, and GT platforms. The correct choice depends on your chassis, engine, transmission, and clutch package.
This listing is for the AASCO 106436-12 lightweight steel flywheel only. It is the right choice if your car already has a compatible clutch and pressure plate setup in good condition, or if you are specifically replacing only the flywheel.
Steel vs. Aluminum Lightweight Flywheel
AASCO offers both aluminum and steel lightweight flywheel options for many Porsche applications.
The lightweight steel flywheel is a good choice for drivers who want sharper response than the factory dual-mass flywheel while retaining a slightly more street-balanced setup than the lightest aluminum flywheel option.
The aluminum flywheel option is generally the more aggressive lightweight choice and may provide the quickest engine response, while the steel flywheel can offer a nice middle ground for street and performance use.
Complete Kit vs. Flywheel-Only
This is a flywheel-only listing. Clutch components, pressure plate, release bearing, and related installation hardware are not included.
Choose this 106436-12 flywheel-only option if:
Your existing clutch and pressure plate setup is compatible and in good condition
You are specifically replacing only the flywheel
Your release bearing and related clutch hardware are already being handled separately
You already know which clutch and pressure plate setup will be used with the flywheel
Choose the complete AASCO flywheel and Sachs Performance clutch kit instead if:
Your clutch is worn or due for replacement
Your pressure plate is worn, heat-spotted, damaged, or unknown
Your release bearing or related hardware needs replacement
You want everything matched together as a complete AASCO / Sachs package
You are unsure what clutch and pressure plate setup is currently installed
For the complete flywheel and clutch package, use AASCO part number 106436-12-PKG.
If you are unsure which version you need, contact us with your year, model, engine, transmission, and current clutch setup so we can help point you toward the correct AASCO option.
Installation Notes
Professional installation is recommended. However, there are DIY how-to guides linked below if you have the tools and equipment at home.
Before installation, confirm the flywheel is compatible with the vehicle, clutch, pressure plate, release bearing, and related installation components being used.
Availability
AASCO Motorsports parts are specialty performance components. Although many items are available from stock, occasional delays may occur if an item is backordered or if AASCO is manufacturing a new batch. If there is a delay, we will provide an updated ETA before fulfillment.
Shipping
Shipping dimensions: 15 x 15 x 4 in
Shipping weight: 21 lb
Part Number: 106428-12
Brand: AASCO Motorsports
Upgrade your manual Porsche 987.2 Boxster or Cayman 2.9L with an AASCO lightweight steel flywheel designed to reduce rotating mass and dramatically improve engine response. This 18 lb flywheel replaces the heavier factory 27 lb dual-mass flywheel setup on compatible base-model Porsche 987.2 Boxster and Cayman 2.9L models, removing approximately 9 lb of rotating mass. The result is an engine that revs more freely, responds more sharply, and feels more alive during downshifts, heel-toe shifting, and spirited driving.
At DasMotoring, this is one of our favorite upgrades for a manual Porsche. A lightweight flywheel can completely change the character of the car — making it feel sharper, more mechanical, and more connected. If your 987.2 Boxster or Cayman has started to feel a little too slow or soulless, this is one of those upgrades that can reignite your love for the car and give it some of that 911 S/T-inspired character and flair.
We have run AASCO lightweight flywheels on our own manual Porsches for years through daily driving, traffic, backroad driving, and track use with excellent results.
This is a great choice for drivers looking for a more responsive, motorsport-inspired feel from their manual 987.2 Boxster or Cayman 2.9L while retaining a flywheel-only setup. The AASCO flywheel is a lightweight steel design, which can be a nice balance for street-driven cars that want sharper response without going to the lightest possible flywheel setup.
Fitment
Fits select manual transmission Porsche 987.2 Boxster and Cayman models:
2009–2012 Porsche Boxster, 987.2 chassis, 2.9L
2009–2012 Porsche Cayman, 987.2 chassis, 2.9L
This flywheel is intended for select manual transmission Porsche 987.2 base-model Boxster / Cayman 2.9L applications listed by AASCO.
This flywheel is not intended for Tiptronic, PDK, 987.1, 986, Boxster S, Boxster Spyder, Cayman S, Cayman R, or 3.4L applications unless specifically confirmed.
Product Details
AASCO lightweight steel flywheel
Part number: 106428-12
Designed for select Porsche 987.2 Boxster / Cayman 2.9L manual applications
Base-model 2.9L steel flywheel application
Flywheel weight: approximately 18 lb
Factory flywheel weight: approximately 27 lb
Approximate rotational mass savings: 9 lb compared to the factory flywheel
Lightweight steel construction
Reduces rotating engine mass compared to the factory dual-mass flywheel
Helps the engine rev faster
Improves throttle response and rev-matching feel
Flywheel-only listing
Driving Feel
A lightweight flywheel reduces rotating mass at the engine, allowing the engine to gain and lose RPM more quickly. The result is a sharper, more immediate connection between your right foot, the engine, and the gearbox. Rev-matched downshifts feel cleaner, throttle blips feel more natural, and the car takes on a more responsive, motorsport-style personality.
Because the flywheel is lighter than the factory dual-mass flywheel setup, some additional drivetrain noise, gear rollover sound, or chatter may be present. This is normal for many lightweight flywheel conversions and is part of the more mechanical driving experience.
The best way to minimize NVH and gearbox chatter is to avoid lugging the engine. Drivers should never lug the engine to begin with, and this is especially important with a lightweight flywheel. Keeping the engine above approximately 2,000 rpm, or selecting a lower gear when climbing hills or accelerating from low speed, will help keep the drivetrain happier and reduce unwanted chatter. The higher the rpm, the less drivetrain chatter and NVH you will have.
Which Version Should I Buy?
AASCO offers several similar-looking lightweight flywheel and clutch options for the 987.2 Boxster / Cayman platform. The correct choice depends on your engine, pressure plate configuration, and whether you want the flywheel only or a complete clutch package.
This listing is for the AASCO 106428-12 flywheel only. It is the right choice if you have a compatible 2009–2012 Porsche 987.2 Boxster or Cayman 2.9L manual and only need the lightweight steel flywheel.
How This Differs From 106422-12
The 106422-12 flywheel is for select 987.2 Boxster S/ Cayman S 3.4L applications using the factory OEM pressure plate setup.
The 106428-12 flywheel is the base-model 2.9L steel flywheel application.
Do not assume the 3.4L 106422-12 flywheel is correct for a base 2.9L car. For compatible 987.2 Boxster / Cayman 2.9L applications, use 106428-12.
Flywheel-Only vs. Complete Kit
Choose this 106428-12 flywheel-only listing if your car already has a compatible clutch and pressure plate setup in good condition, or if you are replacing an existing AASCO 106428-12 flywheel and reusing compatible clutch components.
Choose the complete 106428-12-PKG kit instead if:
Your clutch is worn or due for replacement
Your pressure plate is worn, heat-spotted, damaged, or unknown
You want the flywheel, Sachs Performance pressure plate, Sachs Performance clutch disc, release bearing, and installation hardware matched together as a complete package
Good Candidates for This Flywheel-Only Listing
This flywheel-only listing is generally intended for:
2009–2012 Porsche 987.2 Boxster 2.9L manual applications listed by AASCO
2009–2012 Porsche 987.2 Cayman 2.9L manual applications listed by AASCO
Cars that already have a compatible clutch and pressure plate setup in good condition
Cars replacing an existing AASCO 106428-12 flywheel
Drivers who want the lightweight flywheel only rather than a complete clutch package
If you are unsure which version you need, contact us with your year, model, engine, transmission, and current clutch setup so we can help point you toward the correct AASCO option.
Important Notes
This listing is for the flywheel only. Clutch components, pressure plate, release bearing, hardware, and related installation parts are not included unless specifically stated.
This flywheel is specifically for compatible 987.2 Boxster / Cayman 2.9L manual applications. Fitment may depend on the vehicle’s model year, engine, transmission, and clutch / pressure plate configuration. Always confirm compatibility with your exact vehicle before ordering.
Professional installation is recommended. However, there are DIY how-to guides linked below if you have the tools and equipment at home.
Before installation, compare the new flywheel and related components to the original components being replaced.
Availability
AASCO Motorsports parts are specialty performance components. Although many items are available from stock, occasional delays may occur if an item is backordered or if AASCO is manufacturing a new batch. If there is a delay, we will provide an updated ETA before fulfillment.
Shipping
Shipping dimensions: 15 x 15 x 4 in
Shipping weight: 20 lb
Part Number: 106428-12-PKG
Brand: AASCO Motorsports
Upgrade your manual Porsche 987.2 Boxster or Cayman with a complete AASCO lightweight steel flywheel and Sachs Performance clutch package designed to reduce rotating mass, dramatically improve engine response, and refresh the clutch system at the same time. This kit pairs an AASCO 18 lb lightweight steel flywheel with compatible Sachs Performance clutch components for select Porsche 987.2 Boxster and Cayman manual applications.
Compared to the heavier factory 27 lb dual-mass flywheel setup, the AASCO lightweight steel flywheel removes roughly 9 lb of rotating mass compared to the factory flywheel. The result is an engine that revs more freely, responds more sharply, and feels more alive during downshifts, heel-toe shifting, and spirited driving.
At DasMotoring, this is one of our favorite upgrades for a manual Porsche. A lightweight flywheel can completely change the character of the car — making it feel sharper, more mechanical, and more connected. If your 987.2 Boxster or Cayman has started to feel a little too slow or soulless, this is one of those upgrades that can reignite your love for the car and give it some of that 911 S/T-inspired character and flair.
We have run AASCO lightweight flywheels on our own manual Porsches for years through daily driving, traffic, backroad driving, and track use with excellent results.
This complete kit is a great choice for drivers looking for a more responsive, motorsport-inspired feel from their manual 987.2 Boxster or Cayman while also replacing the clutch, pressure plate, release bearing, and related hardware with a matched Sachs Performance clutch package. The AASCO flywheel is a lightweight steel design, which can be a nice balance for street-driven cars that want sharper response without going to the lightest possible flywheel setup.
Fitment
Fits select manual transmission Porsche 987.2 Boxster and Cayman models:
2009–2012 Porsche Boxster, 987.2 chassis, 2.9L
2009–2012 Porsche Boxster S, 987.2 chassis, 3.4L
2011–2012 Porsche Boxster Spyder, 987.2 chassis, 3.4L
2009–2012 Porsche Cayman, 987.2 chassis, 2.9L
2009–2012 Porsche Cayman S, 987.2 chassis, 3.4L
2012 Porsche Cayman R, 987.2 chassis, 3.4L
This kit is intended for select manual transmission Porsche 987.2 Boxster / Cayman applications using the included AASCO lightweight steel flywheel and Sachs Performance clutch package.
This kit is not intended for non-987.2 applications unless specifically confirmed.
Product Details
Complete AASCO lightweight steel flywheel and Sachs Performance clutch kit
Part number: 106428-12-PKG
Includes AASCO lightweight steel flywheel
Includes Sachs Performance pressure plate: 883082999754
Includes Sachs Performance clutch disc: 881861000017
Includes Sachs release bearing and required installation hardware
Flywheel weight: approximately 18 lb
Factory flywheel weight: approximately 27 lb
Approximate rotational mass savings: 9 lb compared to the factory flywheel
Complete kit line weight listed by AASCO: approximately 32 lb
Lightweight steel construction
Reduces rotating engine mass compared to the factory dual-mass flywheel
Helps the engine rev faster
Improves throttle response and rev-matching feel
Matched flywheel and Sachs Performance clutch package
Driving Feel
A lightweight flywheel reduces rotating mass at the engine, allowing the engine to gain and lose RPM more quickly. The result is a sharper, more immediate connection between your right foot, the engine, and the gearbox. Rev-matched downshifts feel cleaner, throttle blips feel more natural, and the car takes on a more responsive, motorsport-style personality.
Because the flywheel is lighter than the factory dual-mass flywheel setup, some additional drivetrain noise, gear rollover sound, or chatter may be present. This is normal for many lightweight flywheel conversions and is part of the more mechanical driving experience.
The best way to minimize NVH and gearbox chatter is to avoid lugging the engine. Drivers should never lug the engine to begin with, and this is especially important with a lightweight flywheel. Keeping the engine above approximately 2,000 rpm, or selecting a lower gear when climbing hills or accelerating from low speed, will help keep the drivetrain happier and reduce unwanted chatter. The higher the rpm, the less drivetrain chatter and NVH you will have.
Which Version Should I Buy?
AASCO offers several similar-looking lightweight flywheel and clutch options for the 987.2 Boxster / Cayman platform. The correct choice depends on your engine, pressure plate configuration, and whether you want the flywheel only or a complete clutch package.
This listing is for the AASCO 106428-12-PKG complete kit. It is the right choice if you want the AASCO lightweight steel flywheel, Sachs Performance pressure plate, Sachs Performance clutch disc, release bearing, and installation hardware together as a matched package for your compatible 987.2 Boxster or Cayman manual.
How This Differs From 106422-12
The 106422-12 listing is a flywheel-only option for select 987.2 Boxster / Cayman applications using the factory OEM pressure plate setup.
This 106428-12-PKG listing is a complete kit that includes the AASCO lightweight steel flywheel along with the Sachs Performance pressure plate, Sachs Performance clutch disc, release bearing, and required installation hardware.
If your car is keeping the factory OEM pressure plate and you only need the flywheel, use the correct flywheel-only listing.
If your clutch is worn, your pressure plate is worn or unknown, or you want to convert to the matched Sachs Performance clutch setup, choose this 106428-12-PKG complete kit.
Good Candidates for This Complete Kit
This complete kit is generally intended for:
987.2 Boxster 2.9L manual applications listed by AASCO
987.2 Boxster S 3.4L manual applications listed by AASCO
987.2 Boxster Spyder 3.4L manual applications listed by AASCO
987.2 Cayman 2.9L manual applications listed by AASCO
987.2 Cayman S 3.4L manual applications listed by AASCO
987.2 Cayman R 3.4L manual applications listed by AASCO
Cars with a worn clutch, worn pressure plate, or unknown clutch service history
Cars converting from the factory dual-mass flywheel setup to an AASCO lightweight steel flywheel and Sachs Performance clutch setup
Drivers who want everything matched together as a complete AASCO / Sachs package
If you already have a compatible clutch and pressure plate setup in good condition and only need the flywheel, choose the correct flywheel-only listing instead.
If you are unsure which version you need, contact us with your year, model, engine, transmission, and current clutch setup so we can help point you toward the correct AASCO option.
Installation Notes
AASCO notes that the larger portion of the clutch disc spring carrier must face toward the flywheel. If the clutch disc is installed backwards, the clutch diaphragm spring may contact the clutch disc, which can result in clutch failure and may not be covered under warranty.
Professional installation is recommended. However, there are DIY how-to guides linked below if you have the tools and equipment at home.
Important Notes
This listing is for the complete AASCO lightweight steel flywheel and Sachs Performance clutch package listed under part number 106428-12-PKG.
Fitment may depend on the vehicle’s model year, engine, transmission, and clutch / pressure plate configuration. Always confirm compatibility with your exact vehicle before ordering.
Before installation, compare the new flywheel, clutch, pressure plate, release bearing, and hardware to the original components being replaced.
Availability
AASCO Motorsports parts are specialty performance components. Although many items are available from stock, occasional delays may occur if an item is backordered or if AASCO is manufacturing a new batch. If there is a delay, we will provide an updated ETA before fulfillment.
Shipping
Shipping dimensions: 15 x 15 x 12 in
Shipping weight: 34 lb
Part Number: 106422-12
Brand: AASCO Motorsports
Upgrade your manual Porsche 987.2 Boxster or Cayman with an AASCO lightweight steel flywheel designed to reduce rotating mass and dramatically improve engine response while retaining the factory OEM pressure plate setup. This 17.2 lb flywheel replaces the heavier factory 27 lb dual-mass flywheel setup on compatible Porsche 987.2 Boxster S, Boxster Spyder, Cayman S, and Cayman R models, removing approximately 9.8 lb of rotating mass. The result is an engine that revs more freely, responds more sharply, and feels more alive during downshifts, heel-toe shifting, and spirited driving.
At DasMotoring, this is one of our favorite upgrades for a manual Porsche. A lightweight flywheel can completely change the character of the car — making it feel sharper, more mechanical, and more connected. If your 987.2 Boxster or Cayman has started to feel a little too slow or soulless, this is one of those upgrades that can reignite your love for the car and give it some of that 911 S/T-inspired character and flair.
We have run AASCO lightweight flywheels on our own manual Porsches for years through daily driving, traffic, backroad driving, and track use with excellent results.
This is a great choice for drivers looking for a more responsive, motorsport-inspired feel from their manual 987.2 Boxster or Cayman while retaining the factory OEM pressure plate configuration. The AASCO flywheel is a lightweight steel design, which can be a nice balance for street-driven cars that want sharper response without going to the lightest possible flywheel setup.
Fitment
Fits select manual transmission Porsche 987.2 Boxster and Cayman models:
2009–2012 Porsche Boxster S, 987.2 chassis, 3.4L
2011–2012 Porsche Boxster Spyder, 987.2 chassis, 3.4L
2009–2012 Porsche Cayman S, 987.2 chassis, 3.4L
2012 Porsche Cayman R, 987.2 chassis, 3.4L
This flywheel is intended for select manual transmission Porsche 987.2 Boxster / Cayman applications using the factory OEM pressure plate setup.
This flywheel is not intended for Tiptronic, PDK, 987.1, base 2.9L, or non-DFI applications unless specifically confirmed. For base 2.9L 987.2 applications, use the correct base-model flywheel listing instead.
Product Details
AASCO lightweight steel flywheel
Part number: 106422-12
Designed for select Porsche 987.2 Boxster / Cayman manual applications
For use with the factory OEM pressure plate
Flywheel weight: approximately 17.2 lb
Factory flywheel weight: approximately 27 lb
Approximate rotational mass savings: 9.8 lb compared to the factory flywheel
Lightweight steel construction
Reduces rotating engine mass compared to the factory dual-mass flywheel
Helps the engine rev faster
Improves throttle response and rev-matching feel
Flywheel-only listing
Driving Feel
A lightweight flywheel reduces rotating mass at the engine, allowing the engine to gain and lose RPM more quickly. The result is a sharper, more immediate connection between your right foot, the engine, and the gearbox. Rev-matched downshifts feel cleaner, throttle blips feel more natural, and the car takes on a more responsive, motorsport-style personality.
Because the flywheel is lighter than the factory dual-mass flywheel setup, some additional drivetrain noise, gear rollover sound, or chatter may be present. This is normal for many lightweight flywheel conversions and is part of the more mechanical driving experience.
The best way to minimize NVH and gearbox chatter is to avoid lugging the engine. Drivers should never lug the engine to begin with, and this is especially important with a lightweight flywheel. Keeping the engine above approximately 2,000 rpm, or selecting a lower gear when climbing hills or accelerating from low speed, will help keep the drivetrain happier and reduce unwanted chatter. The higher the rpm, the less drivetrain chatter and NVH you will have.
Which Version Should I Buy?
AASCO offers several similar-looking lightweight flywheel and clutch options for the 987 Boxster / Cayman platform. The correct choice depends on your chassis, engine, and pressure plate configuration.
This listing is for the AASCO 106422-12 flywheel only. It is the right choice if your 987.2 Boxster S, Boxster Spyder, Cayman S, or Cayman R is retaining the factory OEM pressure plate setup.
How This Differs From 106412-11
The 106412-11 flywheel is generally used for earlier 986 / 987.1 Boxster and Cayman applications.
The 106422-12 flywheel is for later 987.2 direct-injection applications using the factory OEM pressure plate setup.
Do not assume the earlier 106412-11 flywheel is correct for a 987.2 car. For compatible 987.2 applications using the factory OEM pressure plate, use 106422-12.
OEM Pressure Plate vs. Sachs Performance Package
For 987.2 Boxster / Cayman applications, the correct AASCO option depends on the clutch and pressure plate setup:
If your 987.2 Boxster / Cayman is using the factory OEM pressure plate, use 106422-12.
If your 987.2 Boxster / Cayman is being converted to the Sachs Performance clutch / pressure plate setup, use the complete 106423-12-PKG kit instead.
Good Candidates for This Flywheel-Only Listing
This flywheel-only listing is generally intended for:
987.2 Boxster S manual applications using the factory OEM pressure plate
987.2 Boxster Spyder manual applications using the factory OEM pressure plate
987.2 Cayman S manual applications using the factory OEM pressure plate
987.2 Cayman R manual applications using the factory OEM pressure plate
Cars that already have a compatible factory pressure plate setup in good condition
Cars replacing an existing AASCO 106422-12 flywheel
Drivers who want the lightweight flywheel only rather than a complete clutch package
When to Buy the Complete Kit Instead
Choose a complete AASCO flywheel and Sachs Performance clutch kit instead of this flywheel-only listing if:
Your clutch is worn or due for replacement
Your pressure plate is worn, heat-spotted, damaged, or unknown
You are converting from the factory pressure plate setup to the Sachs Performance clutch / pressure plate setup
You want everything matched together as a complete flywheel, clutch, pressure plate, release bearing, and hardware package
For compatible 987.2 Boxster / Cayman applications converting to the Sachs Performance clutch / pressure plate setup, use 106423-12-PKG instead.
If you are unsure which version you need, contact us with your year, model, engine, transmission, and current clutch setup so we can help point you toward the correct AASCO option.
Important Notes
This listing is for the flywheel only. Clutch components, pressure plate, release bearing, hardware, and related installation parts are not included unless specifically stated.
This flywheel is specifically for compatible 987.2 Boxster / Cayman applications using the factory OEM pressure plate. Fitment may depend on the vehicle’s model year, engine, transmission, and clutch / pressure plate configuration. Always confirm compatibility with your exact vehicle before ordering.
Professional installation is recommended. However, there are DIY how-to guides linked below if you have the tools and equipment at home.
Before installation, compare the new flywheel and related components to the original components being replaced.
Availability
AASCO Motorsports parts are specialty performance components. Although many items are available from stock, occasional delays may occur if an item is backordered or if AASCO is manufacturing a new batch. If there is a delay, we will provide an updated ETA before fulfillment.
Shipping
Shipping dimensions: 15 x 15 x 4 in
Shipping weight: 19 lb
Part Number: 106412-11-PKG
Brand: AASCO Motorsports
Upgrade your manual Porsche 987 Boxster or Cayman with a complete AASCO billet aluminum lightweight flywheel and Sachs Performance clutch package designed to reduce rotating mass, dramatically improve engine response, and refresh the clutch system at the same time. This kit pairs the AASCO 13 lb lightweight flywheel with compatible Sachs Performance clutch components for select Porsche 987 Boxster, Boxster S, Cayman, and Cayman S manual applications.
Compared to the heavier factory 27 lb dual-mass flywheel setup, the AASCO lightweight flywheel reduces rotating engine mass by approximately 14 lb and helps the engine rev more freely, respond more sharply, and feel more alive during downshifts, heel-toe shifting, and spirited driving.
At DasMotoring, this is one of our favorite upgrades for a manual Porsche. A lightweight flywheel can completely change the character of the car — making it feel sharper, more mechanical, and more connected. If your 987 Boxster or Cayman has started to feel a little too slow or soulless, this is one of those upgrades that can reignite your love for the car and give it some of that 911 S/T-inspired character and flair.
We have run AASCO lightweight flywheels on our own manual Porsches for years through daily driving, traffic, backroad driving, and track use with excellent results.
This complete kit is a great choice for drivers looking for a more responsive, mechanical feel from their manual Boxster or Cayman while also replacing the clutch, pressure plate, release bearing, and related hardware with a matched Sachs Performance clutch package. The AASCO flywheel also uses a serviceable friction surface. With proper maintenance and normal use, the flywheel body is designed to be reused long-term — so future clutch services typically only require replacing the friction surface rather than the entire flywheel.
Fitment
Fits select manual transmission Porsche 987 Boxster and Cayman models:
2005–2008 Porsche Boxster, 987 chassis, 2.7L
2005–2008 Porsche Boxster S, 987 chassis, 3.2L / 3.4L
2007–2008 Porsche Cayman, 987 chassis, 2.7L
2006–2008 Porsche Cayman S, 987 chassis, 3.4L
2008 Porsche Boxster RS60 Spyder, 987 chassis, 3.4L
This kit is intended for select manual transmission Porsche 987 Boxster / Cayman applications listed by AASCO. It is not intended for Tiptronic applications.
Product Details
Complete AASCO lightweight flywheel and Sachs Performance clutch kit
Part number: 106412-11-PKG
Includes AASCO billet aluminum lightweight flywheel: 106412-11
Includes Sachs Performance pressure plate: 883082999754
Includes Sachs Performance clutch disc: 881861000017
Includes Sachs release bearing and required installation hardware
Flywheel weight: approximately 13 lb
Factory flywheel weight: approximately 27 lb
Approximate rotational mass savings: 14 lb compared to the factory flywheel
Replaceable friction surface design
Long-term serviceable flywheel body
Reduces rotating engine mass compared to the factory dual-mass flywheel
Helps the engine rev faster
Improves throttle response and rev-matching feel
Matched flywheel and Sachs Performance clutch package
Driving Feel
A lightweight flywheel reduces rotating mass at the engine, allowing the engine to gain and lose RPM more quickly. The result is a sharper, more immediate connection between your right foot, the engine, and the gearbox. Rev-matched downshifts feel cleaner, throttle blips feel more natural, and the car takes on a more responsive, motorsport-style personality.
Because the flywheel is significantly lighter than the factory dual-mass flywheel setup, some additional drivetrain noise, gear rollover sound, or chatter may be present. This is normal for many lightweight flywheel conversions and is part of the more mechanical driving experience.
The best way to minimize NVH and gearbox chatter is to avoid lugging the engine. Drivers should never lug the engine to begin with, and this is especially important with a lightweight flywheel. Keeping the engine above approximately 2,000 rpm, or selecting a lower gear when climbing hills or accelerating from low speed, will help keep the drivetrain happier and reduce unwanted chatter. The higher the rpm, the less drivetrain chatter and NVH you will have.
Which Version Should I Buy?
AASCO offers lightweight flywheel-only and complete flywheel / clutch package options for the 987 Boxster and Cayman platform. The correct choice depends on whether you need only the flywheel or whether you want to replace the clutch system at the same time.
This listing is for the AASCO 106412-11-PKG complete kit. It is the right choice if you want the AASCO lightweight flywheel, Sachs Performance pressure plate, Sachs Performance clutch disc, release bearing, and hardware together as a matched package for your 987 Boxster or Cayman manual.
How This Differs From 106412-11 Flywheel-Only
The 106412-11 listing is the flywheel only. It is the right choice if your car already has a compatible clutch and pressure plate setup in good condition, or if you are replacing an existing AASCO 106412-11 flywheel and reusing compatible clutch components.
This 106412-11-PKG listing is the complete kit. It is the better choice if your clutch is worn, your pressure plate is worn or unknown, or you want the flywheel and clutch components matched together from the start.
Good Candidates for This Complete Kit
This complete kit is generally intended for:
2005–2008 Porsche 987 Boxster 2.7L manual applications listed by AASCO
2005–2008 Porsche 987 Boxster S 3.2L / 3.4L manual applications listed by AASCO
2007–2008 Porsche 987 Cayman 2.7L manual applications listed by AASCO
2006–2008 Porsche 987 Cayman S 3.4L manual applications listed by AASCO
2008 Porsche 987 Boxster RS60 Spyder manual applications listed by AASCO
Cars with a worn clutch, worn pressure plate, or unknown clutch service history
Cars converting from the factory dual-mass flywheel setup to an AASCO lightweight flywheel and Sachs Performance clutch setup
Drivers who want everything matched together as a complete AASCO / Sachs package
If you are unsure which version you need, contact us with your year, model, engine, transmission, and current clutch setup so we can help point you toward the correct AASCO option.
Service Parts
Replaceable friction surface: HS9587T-POR
Friction surface bolt package: HS9587T-POR-BLT-PKG
Installation Notes
AASCO notes that the larger portion of the clutch disc spring carrier must face toward the flywheel. If the clutch disc is installed backwards, the clutch diaphragm spring may contact the clutch disc, which can result in clutch failure and may not be covered under warranty.
Professional installation is recommended. However, there are DIY how-to guides linked below if you have the tools and equipment at home.
Important Notes
This listing is for the complete AASCO lightweight flywheel and Sachs Performance clutch package listed under part number 106412-11-PKG.
Fitment may depend on the vehicle’s model year, engine, transmission, and clutch / pressure plate configuration. Always confirm compatibility with your exact vehicle before ordering.
Before installation, compare the new flywheel, clutch, pressure plate, release bearing, and hardware to the original components being replaced.
Availability
AASCO Motorsports parts are specialty performance components. Although many items are available from stock, occasional delays may occur if an item is backordered or if AASCO is manufacturing a new batch. If there is a delay, we will provide an updated ETA before fulfillment.
Shipping
Shipping dimensions: 15 x 15 × 12 in
Shipping weight: 34 lb
Part Number: 106412-11
Brand: AASCO Motorsports
Upgrade your manual Porsche 987 Boxster (S) or Cayman (S) with an AASCO billet aluminum lightweight flywheel designed to reduce rotating mass and dramatically improve engine response. This 13 lb flywheel replaces the heavier factory 27 lb dual-mass flywheel setup on compatible Porsche 987 Boxster, Boxster S, Cayman, and Cayman S models, helping the engine rev more freely, respond more sharply, and feel more alive during downshifts, heel-toe shifting, and spirited driving.
At DasMotoring, this is one of our favorite upgrades for a manual Porsche. A lightweight flywheel can completely change the character of the car — making it feel sharper, more mechanical, and more connected. If your 987 Boxster or Cayman has started to feel a little too slow or soulless, this is one of those upgrades that can reignite your love for the car and give it some of that 911 S/T-inspired character and flair.
We have run AASCO lightweight flywheels on our own manual Porsches for years through daily driving, traffic, backroad driving, and track use with excellent results.
This is a great choice for drivers looking for a more responsive, mechanical feel from their manual Boxster or Cayman while retaining a proven AASCO flywheel design with a serviceable friction surface. With proper maintenance and normal use, the flywheel body is designed to be reused long-term — so future clutch services typically only require replacing the friction surface rather than the entire flywheel.
Fitment
Fits select manual transmission Porsche 987 Boxster and Cayman models:
2005–2008 Porsche Boxster, 987 chassis, 2.7L
2005–2008 Porsche Boxster S, 987 chassis, 3.2L / 3.4L
2007–2008 Porsche Cayman, 987 chassis, 2.7L
2006–2008 Porsche Cayman S, 987 chassis, 3.4L
2008 Porsche Boxster RS60 Spyder, 987 chassis, 3.4L
This flywheel is intended for select manual transmission Porsche 987 Boxster / Cayman applications listed by AASCO. It is not intended for Tiptronic applications.
Product Details
AASCO billet aluminum lightweight flywheel
Part number: 106412-11
Flywheel weight: approximately 13 lb
Factory flywheel weight: approximately 27 lb
Approximate rotational mass savings: 14 lb compared to the factory flywheel
Compatible with select 2.7L, 3.2L, and 3.4L 987 Boxster / Cayman applications listed by AASCO
Replaceable friction surface design
Long-term serviceable flywheel body
Reduces rotating engine mass compared to the factory dual-mass flywheel
Helps the engine rev faster
Improves throttle response and rev-matching feel
Flywheel-only listing
Driving Feel
A lightweight flywheel reduces rotating mass at the engine, allowing the engine to gain and lose RPM more quickly. The result is a sharper, more immediate connection between your right foot, the engine, and the gearbox. Rev-matched downshifts feel cleaner, throttle blips feel more natural, and the car takes on a more responsive, motorsport-style personality.
Because the flywheel is significantly lighter than the factory dual-mass flywheel setup, some additional drivetrain noise, gear rollover sound, or chatter may be present. This is normal for many lightweight flywheel conversions and is part of the more mechanical driving experience.
The best way to minimize NVH and gearbox chatter is to avoid lugging the engine. Drivers should never lug the engine to begin with, and this is especially important with a lightweight flywheel. Keeping the engine above approximately 2,000 rpm, or selecting a lower gear when climbing hills or accelerating from low speed, will help keep the drivetrain happier and reduce unwanted chatter. The higher the rpm, the less drivetrain chatter and NVH you will have.
Which Version Should I Buy?
AASCO offers several lightweight flywheel and clutch options for the 987 Boxster / Cayman platform. The correct choice depends on whether you need the flywheel only or a complete flywheel and clutch package.
This listing is for the AASCO 106412-11 flywheel only. It is the right choice if your car already has a compatible clutch and pressure plate setup in good condition, or if you are replacing an existing AASCO 106412-11 flywheel and reusing compatible clutch components.
Good Candidates for This Flywheel-Only Listing
This flywheel-only listing is generally intended for:
2005–2008 Porsche 987 Boxster 2.7L manual applications listed by AASCO
2005–2008 Porsche 987 Boxster S 3.2L / 3.4L manual applications listed by AASCO
2007–2008 Porsche 987 Cayman 2.7L manual applications listed by AASCO
2006–2008 Porsche 987 Cayman S 3.4L manual applications listed by AASCO
2008 Porsche 987 Boxster RS60 Spyder manual applications listed by AASCO
Cars that already have a compatible clutch and pressure plate setup
Cars replacing an existing AASCO 106412-11 flywheel
When to Buy the Complete Kit Instead
Choose a complete AASCO flywheel and Sachs Performance clutch kit instead of this flywheel-only listing if:
Your clutch is worn or due for replacement
Your pressure plate is worn, heat-spotted, damaged, or unknown
You are converting from the factory dual-mass flywheel setup to a complete AASCO / Sachs clutch package
You want everything matched together as a complete flywheel, clutch, pressure plate, release bearing, and hardware package
For many 987 Boxster / Cayman applications, AASCO lists the complete kit option as 106412-11-PKG.
If you are unsure which version you need, contact us with your year, model, engine, transmission, and current clutch setup so we can help point you toward the correct AASCO option.
Service Parts
Replaceable friction surface: HS9587T-POR
Friction surface bolt package: HS9587T-POR-BLT-PKG
Important Notes
This listing is for the flywheel only. Clutch components, pressure plate, release bearing, hardware, and related installation parts are not included unless specifically stated.
Fitment may depend on the vehicle’s model year, engine, transmission, and clutch / pressure plate configuration. Always confirm compatibility with your exact vehicle before ordering.
Professional installation is recommended. However, there are DIY how-to guides linked below if you have the tools and equipment at home.
Before installation, compare the new flywheel and related components to the original components being replaced.
Availability
AASCO Motorsports parts are specialty performance components. Although many items are available from stock, occasional delays may occur if an item is backordered or if AASCO is manufacturing a new batch. If there is a delay, we will provide an updated ETA before fulfillment.
Shipping
Shipping dimensions: 15 x 15 x 4 in
Shipping weight: 15 lb
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