07-18 GMC Sierra MRT Deep & Mellow Cat Back

The MRT Chevy Silverado 1500 MRT Deep & Mellow Cat Back Exhaust System is proud part of our All-American spirit: we manufacture all of our exhaust in house in the USA from the toughest T304 corrosion-resistant stainless steel. You'll be confident this system is built as tough as your truck. Our design maximizes performance and quality with 3" mandrel bent tubing and 4" double-wall: the reduced back pressure and increased exhaust flow means added horse power you will feel when you push the pedal. We also use straight-through mufflers for Chevy Silverado owners who want maximum exhaust flow. A T304 stainless steel tip with beveled edges is standard on our systems, but if you are looking for some added style, we offer our Black Ops blackout tip finish using high-quality ceramic paint. Every MRT Deep & Mellow Cat Back Exhaust is handcrafted from T304 stainless steel right here in the U.S. This system includes three-inch mandrel bent tubing and dual four-inch double-wall, polished T304 stainless steel tips with beveled edges. Black Ops finished exhaust tips are available for an added fee for a blackout look. This system is engineered for the best sound to match your vehicle.

The Deep & Mellow Cat Back is quieter than the MRT Deep & Mellow Cat Back with DMS, but louder than your stock Sierra. It has just enough exhaust presence with elevated sound to Get Noticed, plenty of opportunity to Feel the Performance and is packaged in a design without excessive drone. DIY backyard installation takes about 90 minutes using standard hand tools - you don't even need a tuning. We inspect each system a minimum of four times to ensure quality and back them with a limited lifetime warranty.

How does it sound? MRT Deep & Mellow Cat-Back provides a refined, on-demand sound that is loud when you want it.

Is there drone or resonance? Minimal drone.

What if I step on it? Wide-open throttle delivers a spirited and fun performance sound.

• DIY installation for the backyard mechanic
• T304 Stainless Steel for the best corrosion resistance
• Engineered, designed and manufactured in the USA

• 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)

• 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.

• 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!

• 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 90 minutes and requires only common hand tools.
• What is included? All necessary hardware included.