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AASCO Lightweight Flywheel – Porsche 986 Boxster / Boxster S Manual 1997-2004
Part Number: 106412-11
Brand: AASCO Motorsports
Upgrade your manual Porsche 986 Boxster 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 986 Boxster and Boxster 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 986 Boxster 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 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 Boxster models:
1997–1999 Porsche Boxster, 986 chassis, 2.5L
2000–2004 Porsche Boxster, 986 chassis, 2.7L
2000–2004 Porsche Boxster S, 986 chassis, 3.2L
This flywheel is intended for select manual transmission Porsche 986 Boxster / Boxster S 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 2.5L, 2.7L, and 3.2L 986 Boxster 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 986 Boxster 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:
1997–1999 Porsche 986 Boxster 2.5L manual applications listed by AASCO
2000–2004 Porsche 986 Boxster 2.7L manual applications listed by AASCO
2000–2004 Porsche 986 Boxster S 3.2L 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 986 Boxster applications, AASCO lists the complete kit option as 106412-11-PKG. For 2000–2004 Porsche 986 Boxster S 3.2L applications, AASCO also lists 106412-11-S-PKG as a Boxster S-specific complete kit option.
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.
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
Part Number: 106412-11
Brand: AASCO Motorsports
Upgrade your manual Porsche 986 Boxster 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 986 Boxster and Boxster 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 986 Boxster 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 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 Boxster models:
1997–1999 Porsche Boxster, 986 chassis, 2.5L
2000–2004 Porsche Boxster, 986 chassis, 2.7L
2000–2004 Porsche Boxster S, 986 chassis, 3.2L
This flywheel is intended for select manual transmission Porsche 986 Boxster / Boxster S 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 2.5L, 2.7L, and 3.2L 986 Boxster 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 986 Boxster 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:
1997–1999 Porsche 986 Boxster 2.5L manual applications listed by AASCO
2000–2004 Porsche 986 Boxster 2.7L manual applications listed by AASCO
2000–2004 Porsche 986 Boxster S 3.2L 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 986 Boxster applications, AASCO lists the complete kit option as 106412-11-PKG. For 2000–2004 Porsche 986 Boxster S 3.2L applications, AASCO also lists 106412-11-S-PKG as a Boxster S-specific complete kit option.
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.
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