ACT XACT Flywheel Streetlite M3 The TIR optic collects all

The TIR optic collects all of the light from the LED

50 45mm - Burned Blue Neon

GMC: Sierra 2500 HD 2001 - 2006

A see-thru lid allows you to monitor your air filter without having to disassemble anything

ACT XACT Flywheel Streetlite M3 The TIR optic collects allNoticeably 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