Image 1 of 2
Image 2 of 2
AASCO Lightweight Steel Flywheel – Porsche 986 Boxster Manual 1997-2004
Part Number: 106436-12
Brand: AASCO Motorsports
AASCO Fitment Guide
Upgrade your manual Porsche 986 Boxster 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 986 Boxster 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 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 flywheel is a great choice for drivers looking for a more responsive, motorsport-inspired feel from their manual 986 Boxster 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 986 Boxster models:
1997–1999 Porsche Boxster, 986 chassis, 2.5L, manual transmission
2000–2004 Porsche Boxster, 986 chassis, 2.7L, manual transmission
2000–2004 Porsche Boxster S, 986 chassis, 3.2L, manual transmission
This flywheel is intended for select manual transmission Porsche 986 Boxster 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 986 Boxster manual applications
Compatible with select 2.5L, 2.7L, and 3.2L 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.
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: 106436-12
Brand: AASCO Motorsports
AASCO Fitment Guide
Upgrade your manual Porsche 986 Boxster 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 986 Boxster 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 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 flywheel is a great choice for drivers looking for a more responsive, motorsport-inspired feel from their manual 986 Boxster 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 986 Boxster models:
1997–1999 Porsche Boxster, 986 chassis, 2.5L, manual transmission
2000–2004 Porsche Boxster, 986 chassis, 2.7L, manual transmission
2000–2004 Porsche Boxster S, 986 chassis, 3.2L, manual transmission
This flywheel is intended for select manual transmission Porsche 986 Boxster 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 986 Boxster manual applications
Compatible with select 2.5L, 2.7L, and 3.2L 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.
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