The PPE 116112000 High-Flow Exhaust Manifolds with Up-Pipes for your 2011-2016 GM 6.6L Duramax increase exhaust flow by 20 percent and are 50 state emissions legal.

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 49-44067 Large Bore HD 4" Race Pipe for your 2015.5-2016 GM 6.6L Duramax LML is constructed from 4" mandrel bent stainless steel for maximum flow and increased horsepower and torque. The Race pipe is designed with a unique tapered flange to fit the flanged down pipes found on models built after July 2014.

The AFE 49-44066 Large Bore HD 4" Race Pipe for your 2011-2015 GM 6.6L Duramax LML is constructed from mandrel-bent stainless steel tubing for maximum flow, increased horsepower, increased torque and lower EGT's. LARGE BORE HD exhaust race pipes are the perfect combination of performance, fit and value. Uses OE mounting hangers for secure mounting and hassle-free installation. The factory exhaust system will require to be cut prior to installation.

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

The AFE 49-04067 ATLAS 4" Race Pipe for your 2015.5-2016 GM 6.6L Duramax LML is built from 4" mandrel bent aluminized steel tubing. Featuring a unique OE style tapered flange to fit the flanged down pipes found on models built after July 2014. Atlas exhaust race pipes are the perfect combination of performance, fit and value. Leak-Free Seal: A unique tapered OE style flange is used for a complete 360 degree sealing surface.

The AFE 49-04066 ATLAS 4" Race Pipe for your 2011-2015 GM 6.6L Duramax LML is engineered to perform in the most extreme environments. This system is constructed from 4" mandrel-bent aluminized tubing for maximum flow, increased horsepower, increased torque and lower EGT's. The ATLAS exhaust race pipe is the perfect combination of performance, fit and value. Leak-Free Seal: High quality OE style flanges are used for a complete 360 degree sealing surface.

2011-2015 GM 6.6

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

No bungs

Early 2015 only

GM LB7 Passanger side up pipe 2001-2004 GM Federal 2004.5-20016 Offroad

Increase flow in your 2001-2016 GM 6.6L Duramax with the XDP Replacement Up-Pipes with Gaskets XD264. Built for performance and durability, XDP's up-pipes are constructed from 2” stainless steel mandrel-bent tubing, 1/2” thick flanges to eliminate warping, and heavy-duty bellows for a long service life.

GDP 01-16 DURAMAX UP PIPE PASS SIDE W/GASKETS

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

The MBRP GM8428 3" Turbo Downpipe for your 2015.5-2016 GM 6.6L Duramax LML. Removing the restriction in the factory downpipe results in lower EGTs and increased performance. The down pipe is relatively easy to install due to the precision bends that youve come to expect from MBRP.

The MBRP GM8427 3" Turbo Downpipe provides a smoother flow from the turbo in your 2011-2015 GM 6.6L Duramax. Removing the restriction in the factory downpipe results in lower EGTs and increased performance.

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

The aFe Universal fit 409 Stainless Steel Performance Muffler is designed to provide a deep, throaty, powerful sound on acceleration but maintain a smooth sound at idle

The PPE 117000700 3" Stainless Steel Downpipe for your 2015.5-2016 GM 6.6L Duramax LML allows you to remove your crushed oval stock downpipe and replace it with a smooth round, long lasting 304 stainless steel down pipe.

EXHAUST TIP 304 STAINLESS 5IN IN 8IN OUT 18IN LENGTH

UNIVERSAL TIP, 8IN O.D., ROLLED END, 4IN INLET 18IN IN LENGTH, T304

The AFE Universal fit 409 Stainless Steel Performance Muffler is designed to provide a deep, throaty, powerful sound on acceleration but maintain a smooth sound at idle.

The PPE 117000400 3" Stainless Steel Downpipe for your 01-04 GM 6.6L Duramax allows you to removed your crushed oval stock downpipe and replace it with a smooth round, long lasting 304 stainless steel down pipe. Spiral wrapped with titanium woven thread for superior heat that's held in place with stainless steel clamps.

UNIVERSAL TIP, 7" O.D., ROLLED END, 4" INLET 18" IN LENGTH, T304

EXHAUST TIP 304 STAINLESS 5IN IN 8IN OUT 18IN LENGTH

UNIVERSAL TIP, 8IN O.D., ROLLED END, 4IN INLET 18IN IN LENGTH, T304

The PPE 117000600 3" Stainless Steel Downpipe for your 2011-2015 GM 6.6L Duramax LML allows you to removed your crushed oval stock downpipe and replace it with a smooth round, long lasting 304 stainless steel down pipe.