The AFE 49-04035 ATLAS 5" Down-Pipe Back Race Exhaust System for your 2011-2014 GM 6.6L Duramax is built and engineered to performance in the most extreme environments. This off-road race exhaust system is constructed from mandrel bent 5"...

MBRP 4in Pipe w/o Bungs Stainless 15.5-16 GM/Chevy 2500/3500 HD

The AFE 49-04053 ATLAS 4" Down-Pipe Back Race Exhaust System for your 2015.5-2016 GM 6.6L Duramax is built and engineered to perform in the most extreme environments.

The AFE 49-04003 ATLAS 4" Downpipe-Back Race Exhaust System for your 2011-2014 GM 6.6L Duramax is engineered to perform in the most extreme environments. This race exhaust system is constructed from precision, mandrel bent 4” aluminized...

The AFE 49-04003 ATLAS 4" Downpipe-Back Race Exhaust System for your 2011-2014 GM 6.6L Duramax is engineered to perform in the most extreme environments. This race exhaust system is constructed from precision, mandrel bent 4” aluminized...

11-15 GM 6.6

CAT/DPF delete front 1/2 exhaust V bamd to back of DPF

No Bungs

Early 2015 only
Stainless Pipe

2011-2015 GM 6.6

CAT/DPF delete front 1/2 exhaust V Band to back of DPF

No bungs

Early 2015 only

MBRP 4in Pipe w/o Bungs Aluminized 15.5-16 GM/Chevy 2500/3500 HD

11-15 GM 6.6

CAT/DPF delete front 1/2 exhaust V bamd to back of DPF

No Bungs

Early 2015 only
Aluminum Pipe