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Meet the best aftermarket accessory for the redesigned GMC Sierra light-duty pickup truck. The MRT Deep and Mellow catback is a side exit exhaust that replaces the Sierra 1500 factory exhaust with a handcrafted, corrosion resistant T304 stainless steel 3" exhaust tube that sounds amazing. 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
- How does it sound? The MRT Deep & Mellow Cat-Back #92T111 has a deep, performance sound.
- Is there drone or resonance? The drone is noticeable but tolerable.
- What if I step on it? Wide-open throttle increases exhaust loudness and tone to an aggressive performance sound.
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!
Product Quality
- What kind of steel is it made from? Corrosion-resistant T304 stainless steel.
- Where is it made? Developed and handcrafted in-house at MRT facility in Plymouth, Michigan, USA.
- How long is the Warranty? Limited Lifetime Warranty (See Warranty Page for Details)
Feel the Performance
- What is the muffler design? Straight through design to provide maximum exhaust gas flow.
- What is the tube diameter? A large 3" tube is used for reduced exhaust flow restrictions.
- What are the performance gains? Reducing restriction and maximizing flow provides for noticeable gains.
Get Noticed
- What kind of tip is it? 4" double wall T304 stainless steel tip with beveled edges.
- What are my tip finish options? Stylish Polished Stainless Steel or Black Ops Matte black.
- How do I get noticed? Great sound and great looks turn heads and get positive comments!
Installation
- Can I install this myself? Yes, MRT engineers this Premium Exhaust System for a simple do-it-yourself (DIY) installation.
- How long does it take to install? Installation time is about 1 hour and requires only common hand tools.
- What is included? All necessary hardware included.
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Features
- DIY installation for the backyard mechanic
- T304 Stainless Steel for the best corrosion resistance
- Engineered, designed and manufactured in the USA
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