2019+ GMC Sierra 1500 MRT Deep & Mellow Cat Back

At MRT we know that every truck isn't the same and neither is every truck owner - but there's one thing we know all truck enthusiasts have in common: like your truck you're tough and want that power. Meet the best aftermarket accessory for the redesigned GMC Sierra light-duty pickup truck, made to maximize your truck's power and tough presence. The MRT Deep & Mellow Cat-Back system delivers an on-demand sound that balances a tough growl when you rev up with a refined rumble at idle. You will get noticed for all the right reasons: this side exit exhaust replaces the Sierra 1500 factory exhaust and increases the sound level versus stock without being obnoxious or resulting in extra drone.

But the reasons you'll love your new MRT exhaust won't stop with the tough sound: we use a large diameter 3", smooth and gently curved exhaust path with 4" double wall, ,manufactured from corrosion resistant T304 stainless steel, combined with a straight-through muffler to maximize your truck's exhaust flow. That means not only will your truck have a louder, richer exhaust note, but it will also gain noticeable horsepower, torque, and fuel economy. This side-exit exhaust increases the sound level versus stock without causing drone so you experience a subtle hum at steady state driving and can hear the exhaust at idle and on engine revs. Also, the larger rear split tube diameter improves exhaust air flow and gives you a nice uplift in performance and fuel economy improvements. This system has a 4" double wall, polished T304 stainless steel tip with beveled edges which can be upgraded to a black matte finish for some extra truck appeal. Team MRT engineered a deep and mellow exhaust sound to advance your Sierra driving experience and complements the design and style of this latest addition to the GMC family.

If you're looking to give your GMC Sierra 1500 a greater increase in loudness that is packed with a whole lot of performance, check out the MRT Tough Truck Cat-back. MRT Part # 92T106.

Application: 2019+ GMC Sierra 1500, 5.3 V8 engine, Extended Cab, 4WD, 6.5 Foot Standard bed

Hear the Difference

Are you located close to Plymouth, MI and need your MRT aftermarket exhaust installed? Call MRT at 734-455-5807 to make an appointment today!