ACT 09-13 BMW 135i / 09-13 335i XACT Flywheel ProMass NO-DISCOUNT ZM2-XTSS kit features an Xtreme

ZM2-XTSS kit features an Xtreme pressure plate for the most demanding driver

BORLA(r)'S Polyphonic Harmonizer Technology utilizes patented units that contain pipes of different diameters and lengths to create multiple exhaust notes that harmonize to deliver a clean

It is a huge upgrade for intake noise and provides a nice throaty intake tone

Toyota HiDC (1520mm) 2005-2015

ACT 09-13 BMW 135i / 09-13 335i XACT Flywheel ProMass NO-DISCOUNT ZM2-XTSS kit features an XtremeManufacturer Part # : 601030 Associated Comments 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