MRT Deep & Mellow Cat Back Exhaust (92T111G) - 2019+ GMC Sierra 1500 5.3L
Enhance your Sierra’s sound and performance with the MRT Deep & Mellow Cat Back Exhaust. Designed for truck owners who want a refined upgrade, this system delivers a balanced exhaust tone with a smooth rumble at idle and a stronger, more aggressive growl under throttle without excessive volume.
Constructed from corrosion-resistant T304 stainless steel, this system features 3 inch mandrel-bent tubing and a straight-through muffler design to maximize exhaust flow. The result is improved horsepower, torque, and throttle response, along with better overall efficiency. The sound remains controlled during cruising while still providing a satisfying performance tone when you step on it.
This side-exit system adds both performance and style with a 4 inch double-wall polished stainless steel tip with beveled edges. For a more aggressive look, an optional Black Ops matte ceramic tip finish is available.
Features
- Deep & Mellow sound profile with refined, on-demand tone
- Constructed from corrosion-resistant T304 stainless steel
- 3 inch mandrel-bent tubing for improved exhaust flow
- Straight-through muffler design for increased performance
- Minimal drone for comfortable daily driving
- Side-exit exhaust design for modern styling
- 4 inch double-wall polished stainless steel tip with beveled edges
- Optional Black Ops matte ceramic tip finish available
- Improved horsepower, torque, and fuel efficiency
- Aggressive tone under throttle with refined cruising sound
- Direct bolt-on installation with included hardware
- Engineered and manufactured in the USA
- Limited lifetime warranty included
Additional Notes
- Loudness rating: 5 out of 10
- Drone level: 1, minimal cabin resonance
- Performance rating: 7 out of 10
- Designed for daily driving with enhanced sound and comfort
- No tuning required after installation
Fitment
- 2019 GMC Sierra 1500 5.3L V8
- 2020 GMC Sierra 1500 5.3L V8
- 2021 GMC Sierra 1500 5.3L V8
- 2022 GMC Sierra 1500 5.3L V8
- 2023 GMC Sierra 1500 5.3L V8
- 2024 GMC Sierra 1500 5.3L V8
- 2025 GMC Sierra 1500 5.3L V8
- 2026 GMC Sierra 1500 5.3L V8
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
