AFE Power Large Bore-HD 4" DPF Back Stainless Steel Exhaust System

2007.5 - 2010 6.6L GM Duramax LMM

$449.00
SKU NWD-49-44004

49-44004

The Large Bore-HD DPF-Back exhaust is engineered to perform in the most extreme environments. This system is constructed from 4" mandrel bent 409 stainless steel tubing for 126% more flow, an increase of 18 horsepower, 51 lbs. x ft. of torque and reduced EGT's.

This system is finished off with 6" 304 stainless steel intercooled polished tip. Large Bore-HD exhaust systems are the perfect combination of performance, fit and value.

ADDS UP TO:

126%

FLOW INCREASE

ADDS UP TO:

+18 HP

HORSEPOWER

ADDS UP TO:

+51Lbs ft

TORQUE MAX GAINS

  • Features
  • Videos
  • Instructions
  • Vehicle Fitment

Installation is a Snap:
All systems use factory mounting locations providing stability and hassle-free installation.

Leak-Free Seal:
High quality OE style flange and band clamps are used for a complete 360 degree sealing surface.

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

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

6" Polished Tip:
Finishing off the exhaust is a high luster, polished 304 stainless steel slash cut tip with intercooling vents designed to reduce exhaust gas temperatures at the tailpipe. This tip also features a drain port on the bottom to keep rust and corrosion away.

Legality:
This part does not require a CARB EO#

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

Year
Make
Engine

2007.5 - 2010

GM Duramax

6.6L LMM