What do you want in your 3.0L Duramax? If it’s better engine performance, lower EGT’s and an aggressive appearance then aFe’s Large Bore-HD 409 Stainless Steel DPF-Back Exhaust is the right choice. You get the option between a 4 1/2” black tip, or a minimalistic polished tip, regardless of your preference, you get the following benefits in this exhaust system:

3" 409 Stainless Steel Construction:

This DPF-back exhaust system is constructed of 3" mandrel-bent 409 stainless steel tubing for maximum strength and durability.

4-1/2" Diameter Polished Exhaust Tip:

Finishing off this exhaust system is a 4-1/2" diameter polished 304 stainless steel clamp-on exhaust tip. The tip features a laser etched aFe POWER logo for a unique style.

Installation:

Utilizing factory style hangers this system is a direct bolt-on system, which requires no cutting or modifications for a hassle-free installation.

Interlock Flex Pipe:

This DPF-back exhaust system uses a heavy duty flex pipe with an internal interlock liner for added strength and durability.

Computer-Aided Design:

Utilizing state-of-the-art computer-aided design technology, this exhaust system is designed for custom, high tolerance factory fitment.

MIG-Welded:

100% MIG-Welded for race-proven strength and durability.

Exhaust Gas Temperatures:

Intercooled tubing provides reduction in exhaust gas temperatures.

Fitment Note:

• Crew Cab / Short Bed - 147.4" Wheelbase
• Extended Cab / Standard Bed - 147.4" Wheelbase
• Crew Cab / Standard bed - 157" Wheelbase