The AFE 49-44027 MACH Force-Xp 4" 409 Stainless Steel Race Pipe for your 2011-2016 GM 6.6L Duramax LML is engineered to perform in the most extreme
environments. This pipe is constructed from 4" mandrel bent stainless
steel tubing for maximum flow, increased horsepower, increased torque
and lower EGT's. MACH Force XP exhaust race pipes are the perfect
combination of performance, fit and value.
Installation is a Snap:
All systems use factory mounting locations providing stability and hassle-free installation.
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
Flow and Performance:
MACH Force XP exhaust race pipes 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.
- 4" 409 Stainless Steel
- For Off-Road / Race Use
Fitment Note: This race pipe fits all Crew & Extended Cabs excluding Extended Cab, Short Bed. Warning: This free-flow race exhaust pipe requires the use of an aftermarket performance programmer with off-road tuning.