MRT Trail Rated JL4 Axle Back Exhaust (90R139) - 2018+ Jeep Wrangler JL 4 Door 3.6L
Upgrade your 2018+ Jeep Wrangler JL 4-door with the MRT Trail Rated Axle Back Exhaust and experience a bold, refined performance sound that matches your Jeep’s capability. Designed specifically for four-door JL models, this system delivers an aggressive tone when you want it while remaining controlled and comfortable during daily driving and long highway trips.
Built from premium T304 stainless steel, this exhaust features 2.5 inch mandrel-bent tubing and a straight-through muffler design to improve exhaust flow and reduce restriction. The result is enhanced throttle response, increased efficiency, and noticeable performance gains from your 3.6L Pentastar engine. Dual 4 inch double-wall stainless steel tips provide a clean, aggressive look, with optional Black Ops matte finish available for a more rugged appearance.
Engineered for both on-road comfort and off-road performance, the Trail Rated system delivers a strong exhaust presence under acceleration while keeping drone at manageable levels. With a direct bolt-on design and included hardware, installation is quick and straightforward using basic tools. Proudly engineered and manufactured in the USA, this system is backed by a limited lifetime warranty.
Features
- Refined performance sound with aggressive tone under throttle
- Straight-through muffler design for improved exhaust flow
- 2.5 inch mandrel-bent tubing for reduced restriction
- T304 stainless steel construction for corrosion resistance
- Dual 4 inch double-wall stainless steel exhaust tips
- Optional Black Ops matte ceramic tip finish available
- Improved throttle response and overall performance
- Balanced sound with manageable drone for daily driving
- Direct bolt-on installation with included hardware
- No tuning required
- Engineered and manufactured in the USA
- Limited lifetime warranty included
Additional Notes
- Loudness rating: 9 out of 10
- Drone level: 3, moderate but controlled
- Performance rating: 8 out of 10
- Designed specifically for 4 door Wrangler JL models
- Estimated installation time: approximately 60 minutes
Fitment
- 2018 Jeep Wrangler JL 4 Door 3.6L V6
- 2019 Jeep Wrangler JL 4 Door 3.6L V6
- 2020 Jeep Wrangler JL 4 Door 3.6L V6
- 2021 Jeep Wrangler JL 4 Door 3.6L V6
- 2022 Jeep Wrangler JL 4 Door 3.6L V6
- 2023 Jeep Wrangler JL 4 Door 3.6L V6
- 2024 Jeep Wrangler JL 4 Door 3.6L V6
- 2025 Jeep Wrangler JL 4 Door 3.6L V6
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
