ACT 09-13 BMW 135i / 09-13 335i XACT Flywheel ProMass

"Excellence in Performance", backed by the best one-year warranty in the industry! Noticeably improved engine response and acceleration, OE to mild gear rattle; Heat-treated forging for strength and toughness, induction-hardened ring gears for maximum life; One piece construction allows less opportunity for failure and provides uniform efficient heat transfer from the clutch disc. No more warped inserts or loose ring gears; Recommended for street and race use; Forged, CNC machined and dynamically computer balanced for smooth high RPM reliability 601030 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. Fitment: BMW135iBase2009 BMW135iBase2010 BMW135iBase2011 BMW135iBase2012 BMW135iBase2013 BMW335iBase2009 BMW335iBase2010 BMW335iBase2011 BMW335iBase2012 BMW335iBase2013 BMW335iBase2014 BMW335iBase2015 BMW335i xDriveBase2009 BMW335i xDriveBase2010 BMW335i xDriveBase2011 BMW335i xDriveBase2012 BMW335i xDriveBase2013 BMW335i xDriveBase2014 BMW335i xDriveBase2015 BMW335isBase2011 BMW335isBase2012 BMW335isBase2013 BMW435iBase2014 BMW435iBase2015 BMW435iBase2016 BMW435i xDriveBase2014 BMW435i xDriveBase2015 BMW435i xDriveBase2016 BMW535iBase2009 BMW535iBase2010 BMW535iBase2011 BMW535iBase2012 BMW535iBase2013 BMW535iBase2014 BMW535i xDriveBase2009 BMW535i xDriveBase2010 BMWZ4sDrive35i2009 BMWZ4sDrive35i2010 BMWZ4sDrive35i2011 BMWZ4sDrive35i2012 BMWZ4sDrive35i2013 BMWZ4sDrive35i2014 BMWZ4sDrive35i2015 BMWZ4sDrive35i2016