The AFE 49-4402X 4" MACH Force XP Race Exhaust System for your 2011-2016 GM 6.6L Duramax is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 4" 409 stainless steel tubing for maximum flow, increased horsepower, increased torque and lower EGTs. MACH Force XP exhaust systems are the perfect combination of performance, fit and value.
- 4" Stainless Steel Construction
- Off-Road, Race Exhaust System
- Includes Hardware, Hangers & Clamps For Install
Warning: This free-flow race exhaust system requires the use of an aftermarket performance programmer with off-road tuning.