Stay at the top on race day in your 2011-2015 GMC/Chevy 6.6L LMM Duramax with the P1 Race Parts C6044P 4″ Performance Series Race Exhaust System. P1 Race Parts Performance Series Race Exhaust System is built from Aluminized Steel and comes complete with OE style hangers and clamps for an easy installation.
- Doesn’t Fit 3-Bolt Flange
- No Bungs
- High-Flow Muffler
- 4″ Aluminized Steel
- OE Style Hangers For Easy Installation
- Maximum Flow For Competition Applications