The Clutch Masters lightweight aluminum flywheel for 2009–2013 BMW M3 (4.0L) is CNC-machined from 6061 billet and hard anodized for surface protection. Weighing approximately 15 pounds, it reduces rotating mass to improve engine response and revs while accepting OEM-style clutches via a replaceable steel insert. Precision balanced and finished with an integrated ring gear and trigger for compatibility.
Clutch Masters 09-13 BMW M3 4.0L Aluminum Flywheel