AFE Power Large Bore-HD 4" Downpipe Back Dual Exhaust

2011 - 2015 6.6L GM Duramax LML

$945.00
SKU NWD-49-44044-P
Options

49-44044-P / 49-44044-B

Interested in a new exhaust system for your LML Duramax? Check out the Large Bore-HD down-pipe back dual exhaust system by aFe. This system is constructed from 4" mandrel-bent 409 stainless steel tubing and uses a 24"L muffler, high quality band clamps and OE-style bayonet hangers.

This unit uses all factory mounting locations and comes with a bolt-on bracket that supports the driverside tailpipe. This provides for a quick, hassle-free installation with no modification necessary.

Also included in this exhaust system are dual massive 6" black or polished 304 stainless steel tips with laser-cut stainless steel aFe power badges.

Large Bore-HD exhaust systems are the perfect combination of performance, fit and value.

  • Features
  • Videos
  • Instructions
  • Vehicle Fitment

Note: This system is not legal for street use and cannot be installed in a California registered vehicle, nor can this system be sold legally in California.

Single To Dual Exhaust Conversion:
This exhaust is designed to convert the standard single exhaust into an aggressive dual exhaust.

Fits With Spare Tire:
This exhaust system fits perfectly without relocating the spare tire.

OE 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:
This Large Bore-HD exhaust system is constructed from 4" mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT's.

Merge Collector:
This exhaust system uses a mitered merge collector to convert the standard single exhaust to an aggressive dual exhaust.

Polished Tips:
Finishing off the exhaust are dual high luster, polished 304 stainless steel slash-cut tips. The tips feature a drain port on the bottom to keep rust and corrosion away.

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

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

Year
Make
Engine

2011 - 2015

GM Duramax

6.6L LML