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!

Select a Sub-Category