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Large Bore-HD 4" 409 Stainless Steel Down-Pipe Back Exhaust System

GM Diesel Trucks 11-15 V8-6.6L (td) LML
Part Number: 49-44031NM
$549.95

MSRP: $670.68

Details:

  • Constructed of 4" mandrel-bent stainless steel tubing for maximum flow
  • OE style bayonet hangers are used to maintain a stable pipe location
  • Includes a muffler delete-pipe
  • Uses factory mounting locations providing stability and includes all necessary hardware for a hassle-free installation
  • Increased Flow and Performance
  • High quality OE style band clamps are used for a complete 36 sealing surface
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Overview


The Large Bore-HD DPF-Delete race down-pipe back exhaust system eliminates the use of the restrictive diesel particulate filter (DPF) and catalytic converter for maximum performance and extreme mileage gains. This free flowing exhaust system outflows the factory exhaust by 67% and is constructed out of durable 4" mandrel bent 409 stainless steel and uses bayonet style hangers and band clamps for a clean installation. This system comes complete with all tubing, bayonet hangers and band clamps. You will be shocked at the performance and mileage improvement you will see from this system. This system requires the use of a controller with a DPF-delete function. All aFe exhaust systems are engineered and manufactured in our Corona, California manufacturing facility.

Installation is a Snap:
This Large Bore-HD exhaust systems utilizes factory mounting locations providing stability and includes all necessary hardware for hassle-free installation.

Leak-Free Seal:
High quality OE style band clamps are used for a complete 36 sealing surface.

Aggressive Sound:
A muffler delete-pipe is used for a true race-inspired sound and maximum flow.

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 systems are constructed of mandrel bent 4" stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT's.

*This kit will only fit 2015 models manufactured before July 2014 equipped with a non-flanged down pipe.

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 manufacturing facility.

Applications

Vehicle Applications

Year Make Model SubModel Engine Fuel
2011-2015Chevrolet Silverado HD 2500HD/3500HD (LML) Duramax Turbo Diesel V8 6.6L Diesel
2011-2015GMC Sierra HD 2500HD/3500HD (LML) Duramax Turbo Diesel V8 6.6L Diesel
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