Specifications
- Brand
- SPEC
- Part #
- SA81A-3

Spec 99-04 Audi S3 1.8T Aluminum Flywheel
$478.23
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SPEC aluminum flywheel for 1999-2004 Audi S3 1.8T. Lightweight design for improved acceleration.
Key Features
- Fits 1999-2004 Audi S3 1.8T.
- Constructed from lightweight aluminum to reduce rotational mass.
- Promotes quicker engine acceleration and improved throttle response.
- Designed as a direct replacement for the factory flywheel.
- Well-built component from SPEC.
Product Details
This is a SPEC aluminum flywheel designed for the 1999-2004 Audi S3 with the 1.8T engine. A flywheel's job is to store rotational energy from the engine, smoothing out the power delivery to the transmission and providing a surface for the clutch to engage with. Swapping to a lighter flywheel like this one can make a noticeable difference in how quickly your car accelerates.
SPEC uses aluminum for this flywheel, which is significantly lighter than a stock steel unit. This reduction in rotational mass means the engine can spin up and down more freely, leading to quicker throttle response and improved acceleration, especially from a standstill or when exiting corners. It's a well-built component that directly replaces your original flywheel, making it a solid option if you're looking to enhance your S3's performance feel.
When installing a lighter flywheel, it's common to notice a slight increase in engine noise or chatter at idle, and the engine may not idle quite as smoothly as with a heavier stock flywheel. This is normal and a direct result of the reduced mass. Be sure to follow the manufacturer's installation instructions carefully, especially regarding proper torque and any required resurfacing or cleaning of the clutch surfaces.
Specifications
- Brand
- SPEC
- Manufacturer Part #
- SA81A-3
Frequently Asked Questions
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Spec 99-04 Audi S3 1.8T Aluminum Flywheel




