XACT Streetlite Flywheel by ACT 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 Features Product Weight (lbs.): 16.5 Material: Chromoly Steel Friction Surface Diameter (Millimeters): 240 Flywheel Type: Streetlite Tooth Quantity: 115 SFI: 1.1 Benefits 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 Applications 2006-2006 BMW 325i 2006-2006 BMW 325xi 2008-2008 BMW 528xi 2007-2010 BMW X3 2006-2007 BMW 530xi What\’s In The Box? 1 – ACT XACT Streetlite Flywheel Warranty ACT 1-Year Limited Warranty