aFe Large Bore HD 4in Aluminized Steel Exhaust Test Pipe GM Diesel Trucks 15.5-16 V8 6.6L (td)

In stock


Constructed from 4" mandrel bent aluminized steel tubing for maximum flow
A Unique high quality OE style tapered flange is used for a complete 360-degree sealing surface
An OE style bayonet hanger is used to maintain a stable pipe location
Uses factory mounting locations providing stability
Retains factory tail-pipe

aFe power introduces an ATLAS race pipe for 15.5-16 GM Diesel Trucks with V8-6.6L (td) engine. This race pipe is constructed from 4" mandrel bent aluminized steel tubing for maximum flow, increased horsepower and torque. The Race pipe is designed with a unique tapered flange to fit the flanged down pipes found on models built after July 2014. Atlas exhaust race pipes are the perfect combination of performance, fit and value. The factory exhaust system will require to be cut prior to installation.

Leak-Free Seal:
A unique tapered OE style flange is used for a complete 360 degree sealing surface.

Perfect Fit:
A OE style bayonet hanger is 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 ATLAS exhaust race pipe is constructed of 4" mandrel bent aluminized steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT's.

Fits: Crew Cab/Short Bed (153.7"Wheelbase), Crew Cab/Long Bed  (167.7" Wheelbase), Extended Cab/Short Bed  (144.2"Wheelbase), Extended Cab/Long Bed (158.2" Wheelbase) & Single Cab/Long Bed (133.7" Wheelbase)  models.

Note 1: This kit will only fit models manufactured after July 2014 equipped with a flanged down pipe. Does not fit cab & chassis, Fits 133.7 " to 167.7" wheel bases only.

Race Disclaimer:
This is a Race Only product that is to be used solely for competition, it cannot be used on vehicles that are operated on public streets, roads or highways. Its 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. To complete the purchase of this item, aFe Power competition acknowledgement/liability release form must be filled out and submitted.

All aFe exhaust systems are engineered and manufactured in our Corona, California facility.


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