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

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.
XACT Flywheel Streetlite
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

Fitment:
BMW 135i Base 2009
BMW 135i Base 2010
BMW 135i Base 2011
BMW 135i Base 2012
BMW 135i Base 2013
BMW 335i Base 2009
BMW 335i Base 2010
BMW 335i Base 2011
BMW 335i Base 2012
BMW 335i Base 2013
BMW 335i Base 2014
BMW 335i Base 2015
BMW 335i xDrive Base 2009
BMW 335i xDrive Base 2010
BMW 335i xDrive Base 2011
BMW 335i xDrive Base 2012
BMW 335i xDrive Base 2013
BMW 335i xDrive Base 2014
BMW 335i xDrive Base 2015
BMW 335is Base 2011
BMW 335is Base 2012
BMW 335is Base 2013
BMW 435i Base 2014
BMW 435i Base 2015
BMW 435i Base 2016
BMW 435i xDrive Base 2014
BMW 435i xDrive Base 2015
BMW 435i xDrive Base 2016
BMW 535i Base 2009
BMW 535i Base 2010
BMW 535i Base 2011
BMW 535i Base 2012
BMW 535i Base 2013
BMW 535i Base 2014
BMW 535i xDrive Base 2009
BMW 535i xDrive Base 2010
BMW Z4 sDrive35i 2009
BMW Z4 sDrive35i 2010
BMW Z4 sDrive35i 2011
BMW Z4 sDrive35i 2012
BMW Z4 sDrive35i 2013
BMW Z4 sDrive35i 2014
BMW Z4 sDrive35i 2015
BMW Z4 sDrive35i 2016