AFE Power Large Bore-HD 4" Stainless Steel Downpipe Exhaust System
The Large Bore-HD exhaust race pipe is engineered to perform in the most extreme environments. This system is constructed from 4" mandrel bent 409 stainless steel tubing for maximum flow, increased horsepower, increased torque and lower EGT's.
Large Bore-HD 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. Updated to one-piece design for an even easier installation.
High quality OE style flanges are used for a complete 360 degree sealing surface.
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:
Large Bore-HD exhaust race pipes are constructed of 4" mandrel bent 409 stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT's.
Note: This is a "Race Only" product used solely for competition. It's use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use including recreational off-road use, could be in violation of local, state and federal laws.
All aFe exhaust race pipes are engineered and manufactured in their Corona, California manufacturing facility.
2007.5 - 2009
2010 - 2012