AFE Power Large Bore-HD 4" Downpipe Back Stainless Steel Exhaust System Without Muffler

2011 - 2015 6.6L GM Duramax LML

$451.00
SKU NWD-49-44031NM

49-44031NM

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

ADDS UP TO:

+67%

FLOW INCREASE

  • Features
  • Videos
  • Instructions
  • Vehicle Fitment

This system also requires an aftermarket electronic module to work properly with the vehicle.

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.

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.

Notes: This is a "Race Only" product used solely for competition. Its use is limited to closed-course racing that is formally sanctioned by a recognized racing organization.

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

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

Year
Make
Engine

2011 - 2015

GM Duramax

6.6L LML