The AFE 49-44017 Mach Force XP 4" Down-Pipe Back Race Exhaust System for your 2007.5-2010 GM 6.6L Duramax is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 4" stainless steel tubing for maximum flow, increased horsepower, increased torque and lower EGTs. The system is available in a 4" down-pipe back with muffler and is finished off with a powder-coated black or polished tip. Mach FORCE XP exhaust systems are the perfect combination of performance, fit and value.
Installation is a Snap:
All systems use factory mounting locations providing stability and a hassle-free installation.
High quality OE-style flange and band clamps are used for a complete 360 degree sealing surface.
A free-flowing 24" x 8" long muffler is used to absorb high pitch tones producing a powerful sound and unleashing all available horsepower and torque out of your rig.
OE-style hangers with bayonet tip are used to maintain a stable pipe location during high vibration and high heat conditions.
Flow and Performance:
Mach FORCE XP exhaust systems are constructed of 4"" mandrel bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGTs.
Finishing off the exhaust is a polished or powder-coated black 304 stainless steel exhaust tip. This tip features a drain port on the bottom to keep rust and corrosion away. A unique stainless steel laser-cut aFe Power logo plate is riveted on for an aggressive style.
Exhaust Tip Finish
Warning: This free-flow race exhaust system requires the use of an aftermarket performance programmer with off-road tuning. Does not fit Cab & Chassis models.
The AFE 49-44017 MACH FORCE XP 4" DOWN-PIPE BACK RACE EXHAUST SYSTEM will have a relatively quite muffler. That in combination with the factory VGT turbocharger will not increase the exhaust sound to a point where it is too excessive.