These kits feature a non-SAC mechanism pressure plate, which , deviating from the original design, provides a lighter rotating assembly, higher rpm capability and greater clamp load levels. Required for the install is a billet rebuildable flywheel that features a lightweight, low MOI design and infinite rebuildability. The billet aluminum flywheel weighs 14lbs, and billet steel 22 lbs.
You may also be interested in the SPEC BMW Flywheel (335i & 335d).
Note: This product cannot be fitted to an OEM design flywheel. Clutches that can fit to an OEM design are found here.