aFe Power Large Bore-HD 4 Inch 409 Stainless Steel Down-Pipe Exhaust System

SKU
49-42021
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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.

Leak-Free Seal:
High quality OE style flanges are used for a complete 360 degree sealing surface.

Perfect Fit:
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.

More Information
Part Number 49-42021
Brand aFe Power
Type of Part Cat Back Exhaust
Engine Fitment Cummins 6.7L
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