2007-2008 Audi RS4 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.): 15.2 Material: Chromoly Steel Flywheel Type: Streetlite Tooth Quantity: 117 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 Forged, CNC machined and dynamically computer balanced for smooth high RPM reliability 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 Applications 2007-2008 Audi RS4 What\’s In The Box? 1 – ACT XACT Streetlite Flywheel Warranty ACT 1-Year Limited Warranty