The AFE 49-44044 MACH Force XP 4" Dual Downpipe-Back Race Exhaust System for your 2011-2015 GM 6.6L Duramax is constructed from 4" mandrel-bent stainless steel. This exhaust system will provide a mild, throaty tone with a 12" long muffler and installs easily with high-quality band clamps and OE-style bayonet hangers. Designed for ease of install, this exhaust system will reinstall using the factory mounting locations and comes complete with a bolt-on bracket that supports the driver side tailpipe. The finishing touch is your choice of a polished or powdercoated exhaust tip. MACH Force exhaust systems are the perfect combination of performance, fit and value.
Single To Dual Exhaust Conversion:
This exhaust is designed to convert the standard single exhaust into an aggressive dual exhaust.
Fits With Spare Tire:
This exhaust system fits perfectly without relocating the spare tire.
OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE-style fit that does not change with time.
Flow and Performance:
This Mach FORCE XP exhaust system is constructed from 4" mandrel-bent stainless steel tubing for maximum flow in competition. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGTs.
This exhaust system uses a mitered merge collector to convert the standard single exhaust to an aggressive dual exhaust.
Exhaust Tip Finish
- 4" Stainless Steel Construction
- Downpipe-Back Race Exhaust System
- Polished Or Black Exhaust Tips
- Designed For Off-Road Competition Use
Fitment Note: This exhaust will only fit 2015 models manufactured before July 2014. Models built after July of 2014 are equipped with a 3-bolt down pipe flange connection that is not compatible with this product. Warning: This free-flow race exhaust system requires the use of an aftermarket performance programmer with off-road tuning.