2004-2008 Audi S4 XACT Streetlite Flywheel By ACT This 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. Features Feel: Noticeably improved engine response and acceleration, OE to mild gear rattle Life: Heat-treated forging for strength and toughness, induction-hardened ring gears for maximum life Quality: 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 Use: Recommended for street and race use ACT Difference: Forged, CNC machined and dynamically computer balanced for smooth high RPM reliability Please Note: Must be used with ACT pressure plate and disc. Applications 2004 – 2008 Audi S4 What\’s In The Box? 1 – XACT Streetlite Flywheel References Installation Instructions Warranty ACT 12 Month Limited Warranty