Sinister Diesel - Exhaust Systems / Manifolds for Duramax

GM Duramax - Exhaust Systems / Manifolds for Duramax

Improve the Look

Whether you want to replace your Duramax’s full exhaust system or just make improvements one section at a time, Sinister Diesel has what you need. From the headers down to the exhaust tips you can fully customize your diesel truck’s exhaust with aftermarket parts from the top brands including: MBRP, aFe, BD Diesel, Flo-Pro and many more.

Enhance the Performance

Upgrading your diesel truck’s stock exhaust is one of the easiest ways to enhance its overall performance. An aftermarket exhaust allow your Duramax engine to breathe more efficiently leading to a drop in exhaust gas temperatures and a boost in horsepower and torque.

Deepen the Sound

Replacing your stock exhaust with a custom aftermarket exhaust system will also give you the smooth, deep resonant sound that every diesel truck owner desires.

Why Buy from Sinister?

We have a wide selection of performance diesel exhaust parts to choose from, and they’re all backed by free, live technical support and our Sinister guarantee. So pick your part and start enjoying everything that comes with a performance exhaust kit!

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GM Duramax - Exhaust Systems / Manifolds for Duramax - CAT Back Duals for Duramax
Improve the Look Sinister Diesel’s has Cat Back dual exhaust kits for your Duramax diesel. Whether you prefer stainless or aluminized steel, 4” or 5” exhaust, we have exactly what you are...More Details »
GM Duramax - Exhaust Systems / Manifolds for Duramax - CAT Back Single for Duramax
Improve the Look Sinister Diesel’s has Cat Back single exhaust kits for your Duramax diesel. Whether you prefer stainless or aluminized steel, 4” or 5” exhaust, we have exactly what you...More Details »
GM Duramax - Exhaust Systems / Manifolds for Duramax - Clamps & Adapters for Duramax
Improve the Look Sinister Diesel’s has clamps and adapters to enable you to fully customize your Duramax diesel’s exhaust. Whether you prefer stainless or aluminized steel, 4” or 5”...More Details »
GM Duramax - Exhaust Systems / Manifolds for Duramax - DPF Back Duals for Duramax
Improve the Look Sinister Diesel’s has DPF back dual exhaust for your Duramax diesel’s exhaust. Whether you prefer stainless or aluminized steel, 4” or 5” diameter, we have exactly what...More Details »
GM Duramax - Exhaust Systems / Manifolds for Duramax - DPF Back Single for Duramax
Improve the Look Sinister Diesel’s has DPF Back single exhaust kits for your Duramax diesel. Whether you prefer stainless or aluminized steel, 4” or 5” exhaust, we have exactly what you...More Details »
GM Duramax - Exhaust Systems / Manifolds for Duramax - Down Pipes for Duramax
Improve the Look Sinister Diesel’s has exhaust down pipes for your Duramax diesel’s exhaust. Whether you prefer stainless or aluminized steel, 4” or 5” diameter, we have exactly what you...More Details »
GM Duramax - Exhaust Systems / Manifolds for Duramax - Exhaust Brakes for Duramax
Enhance the Performance Improving your Duramax diesel truck’s stock brakes with aftermarket exhaust brakes is one of the easiest ways to enhance its overall braking performance. Designed to...More Details »
GM Duramax - Exhaust Systems / Manifolds for Duramax - Exhaust Tips for Duramax
Improve the Look Sinister Diesel’s has exhaust tips for your Duramax diesel’s exhaust. Whether you prefer stainless or aluminized steel, 4” or 5” diameter, black or chrome, we have...More Details »
GM Duramax - Exhaust Systems / Manifolds for Duramax - Manifolds / Headers for Duramax
Enhance the Performance Upgrading your diesel truck’s stock exhaust with an aftermarket exhaust is one of the easiest ways to enhance its overall performance. Replacing your stock...More Details »
GM Duramax - Exhaust Systems / Manifolds for Duramax - Muffler Delete Pipes for Duramax
Improve the Look Sinister Diesel’s has muffler delete pipes for your Duramax diesel. Whether you prefer stainless or aluminized steel, 4” or 5” diameter, we have exactly what you are...More Details »
GM Duramax - Exhaust Systems / Manifolds for Duramax - Stacks for Duramax
Improve the Look Sinister Diesel’s has exhaust stacks for your Duramax diesel. Whether you prefer stainless or aluminized steel, 4” or 5” diameter, we have exactly what you are looking for...More Details »
GM Duramax - Exhaust Systems / Manifolds for Duramax - Turbo Back Duals for Duramax
Improve the Look Sinister Diesel’s has turbo back dual exhaust kits for your Duramax diesel. Whether you prefer stainless or aluminized steel, 4” or 5” exhaust, we have exactly what you...More Details »
GM Duramax - Exhaust Systems / Manifolds for Duramax - Turbo Back Single for Duramax
Improve the Look Sinister Diesel’s has turbo back single exhaust kits for your Duramax diesel. Whether you prefer stainless or aluminized steel, 4” or 5” exhaust, we have exactly what you...More Details »
GM Duramax - Exhaust Systems / Manifolds for Duramax - Up Pipes for Duramax
Improve the Look Sinister Diesel’s has exhaust up pipes for your Duramax diesel’s exhaust. Whether you prefer stainless or aluminized steel, 4” or 5” diameter, we have exactly what you...More Details »