AFE Power Large Bore-HD 5" Stainless Steel Race Pipe

2011 - 2015 6.6L GM Duramax LML

SKU NWD-49-44029-P

49-44029-P / 49-44029-B

The Large Bore-HD 5in 409 stainless steel race pipe with polished tip eliminates the use of the restrictive diesel particulate filter (DPF) for maximum performance and extreme mileage gains.

This free flowing side exit exhaust system outflows the factory exhaust by 300cfm is constructed out of durable 5" mandrel bent 409 stainless steel and uses bayonet style hangers and band clamps for a hassle-free installation.

  • Features
  • Videos
  • Instructions
  • Vehicle Fitment

This system comes complete with a free flowing muffler, all tubing, bayonet hangers, band clamps and is finished off with a 6" black or high luster polished 304 stainless steel, rolled, slash cut tip.

Note: 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. Any other use, including recreational off-road use, could be in violation of local, state and federal laws.

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

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


2011 - 2016

GM Duramax

6.6L LML