MRT Deep & Mellow Cat Back Exhaust (91K105) - 2021+ Ford F-150
Upgrade your 2021+ Ford F-150 with the MRT Deep & Mellow Cat Back Exhaust, designed to deliver a refined performance tone with just the right amount of aggression. Perfect for daily drivers and work trucks alike, this system adds a deeper, richer exhaust note without overwhelming the cabin or your surroundings.
Built from premium T304 stainless steel, this cat-back system features 3 inch mandrel-bent tubing and a straight-through muffler design to improve exhaust flow and overall performance. The result is increased horsepower, better throttle response, and improved efficiency. Dual 4 inch double-wall polished stainless steel tips with beveled edges provide a clean, aggressive look, with an optional Black Ops matte finish available for a more stealthy appearance.
The Deep & Mellow system delivers a balanced sound profile with a smooth idle tone, a noticeable growl under acceleration, and a controlled, comfortable presence while cruising. It is an ideal choice for drivers who want enhanced sound and performance without excessive loudness or drone.
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 enhanced performance
- Dual 4 inch double-wall polished stainless steel tips
- Optional Black Ops matte ceramic tip finish available
- Improved horsepower, torque, and throttle response
- Minimal drone for comfortable daily driving
- Direct bolt-on installation
- Engineered and manufactured in the USA
- Limited lifetime warranty included
Additional Notes
- Loudness rating: 6 out of 10
- Drone level: 2, minimal
- Performance rating: 8 out of 10
- Quieter than MRT Tough Truck system but louder than stock
- Estimated installation time: approximately 90 minutes
- No tuning required
Fitment
- 2021 Ford F-150 5.0L V8 SuperCab
- 2022 Ford F-150 5.0L V8 SuperCab
- 2023 Ford F-150 5.0L V8 SuperCab
- 2024 Ford F-150 5.0L V8 SuperCab
- 2025 Ford F-150 5.0L V8 SuperCab
- 2021 Ford F-150 2.7L EcoBoost SuperCab
- 2022 Ford F-150 2.7L EcoBoost SuperCab
- 2023 Ford F-150 2.7L EcoBoost SuperCab
- 2024 Ford F-150 2.7L EcoBoost SuperCab
- 2025 Ford F-150 2.7L EcoBoost SuperCab
- 2021 Ford F-150 3.5L EcoBoost SuperCab
- 2022 Ford F-150 3.5L EcoBoost SuperCab
- 2023 Ford F-150 3.5L EcoBoost SuperCab
- 2024 Ford F-150 3.5L EcoBoost SuperCab
- 2025 Ford F-150 3.5L EcoBoost SuperCab
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
