Description ACT 601170 – 08-13 BMW 128i (E82/E88) L6-3.0L (N51/N52) X Flywheel Streetlite ACT XACT Streetlite Clutch Flywheel XACT Flywheel Streetlite 601170 is a Streetlite flywheel, which is considerably lighter than stock and is the most durable flywheel offering from ACT. Materials are properly distributed for maximum strength, lower inertia, good heat tolerance and rigidity. ACT’s Streetlite flywheels are preferred for street or drag racing. ACT flywheels are serviceable and can be resurfaced with no need to purchase additional parts. “Excellence in Performance”, backed by the best one-year warranty in the industry!

Friction Surface Diameter: 9.4Friction Surface Diameter: 240Part Fitment Requirement: Single mass flywheel conversion. Can be used with both factory clutch kit and ACT clutch kits. Gear rattle is expected. Flywheel bolts included (M12-1.5 x 25mm).Product Weight (lbs.): 16.5SFI: 1.1Material: Chromoly SteelType: StreetliteMounting Hardware Included: YesMounting Hole Quantity: 7Weight: 16.5Tooth Quantity: 115Friction Surface Configuration: RecessedGrade Type: PerformanceSFI Rating: 1.1Replaceable Friction Surface: NoEngine Balance: Internal.