
The SPEC aluminum flywheel for select 2004–2012 BMW models replaces the factory steel unit with a lighter aluminum option to improve throttle response and rev characteristics. Listed for various 1 and 3 Series, 5 Series and Z4 applications, it’s built to work with compatible clutch assemblies. Refer to vehicle fitment to confirm correct model coverage before purchase.
Spec 04-12 BMW 128/130/328/330/525/530/Z4 Aluminum Flywheel