GMC Sierra Performance Exhaust Kits Made in the USA
Make an ordinary truck sound like a performance steed with the ideal GMC Sierra exhaust system designed by the engineers at MRT. This rebadged
Chevy Silverado is the flagship of the GM truck line, and by customizing your rig, it will stand out from the many other Sierras on the road. We have more than 35 years of OE and automotive engineering experience. This has given us a full understanding of sound and how to design exhaust systems so they bring the most out of a vehicle. Shop with us for handcrafted exhaust kits that fit the GMC Sierra like the truck came with them already attached.
Sound Made for YouMRT's GMC Sierra cat-back systems make an instant difference from the moment you bolt them on. Our
Sierra Deep & Mellow Cat-Back emits a loud, deep rumble that's ideal for city streets or worksite. Those who are ready to run free on the highway or off the beaten path will love the
MRT ToughTruck Cat-Back that cranks things up a few more decibels. Both systems have a straight-through muffler and CNC-bent wide mandrel tubing to increase horsepower by maximizing flow.
Want a Sierra axle-back exhaust or a custom system? Give MRT a call. We're always designing new GMC Sierra performance parts, and if you don't see the right kit here, it might be on its way. If not, let us make it for you!
Unmatched Quality for DIYersMRT is committed to making excellent exhaust systems for backyard mechanics. We inspect each part at least four times and design them for bolt-on installation. You don't even need to own a diagnostic tool to know your vehicle is performing its best. Visit the product pages or stop by the
MRT YouTube channel to watch reviews of our exhaust systems and hear them for yourself.
GMC Sierra Exhaust FAQs
Are there specific considerations or compatibility issues to keep in mind when choosing an exhaust system for a GMC Sierra?
You will need to be sure you are getting an exhaust designed for your truck's model year and engine type. Several engine options are available for the GMC Sierra, and as an example, an exhaust system optimized for the 5.3L V8 won't get the most from the 6.2L V8. Furthermore, the GMC Sierra was redesigned in 2019, and this included changes to the engine and exhaust layout from the third-gen and fourth-gen trucks produced from 2007 to 2018. In particular, the muffler bolts to the Y-pipe differently, thus requiring different parts and connectors.
What are the common signs indicating a loose muffler, and how urgent is it to address this issue?
There are five main signs your GMC Sierra muffler is loose. 1) The muffler is louder than normal. 2) The muffler is making a rattling, thumping or clunk sound. 3) Your fuel mileage has dropped noticeably. 4) The engine is running hot. 5) There are unusual smells inside the truck cab. If you think the muffler has come loose, you should get it fixed as soon as possible, as it can eventually cause permanent damage to the exhaust system and/or engine.
How much horsepower can a GMC Sierra exhaust add?
This depends on the type of exhaust system and how it is designed. The best GMC Sierra performance exhaust systems can add as much as 20 horsepower. If power is your goal, look for an exhaust with mandrel-bent tubing and a straight-through muffler, as these design features minimize restrictions for enhanced exhaust gas flow. A cat back system will produce more gains than an axle back system since more of the stock piping is being replaced.
