2018+ Jeep Wrangler MRT Extreme JL4 Axle Back

18+ Jeep Wrangler MRT Version 3 JL4  Axle Back Performance Exhaust System 90R139
MRT 304 Stainless Axle-back: 2018+ Jeep Wrangler 4 Door #90R139
Alternative Views

MRT Part# 90R139 Loudness: 9 Drone: 3 Performance: 8

Application: 2018+ Wrangler JL 4 Door 3.6L
Tune: None Required
Time to Install: 60 Minutes
Retail Price: $995.99
Your Price: $829.99

Price with Options: $829.99

Availability: Usually Ships in 1 to 2 Business Days

Available Options:

Product Details Technical Specs Installation Instructions
The MRT Wrangler 3.6L Version 3 JL4 Axle-Back system has a loud, deep muscle car sound and is handcrafted in corrosion-resistant T304 Stainless Steel. Base systems include T304 polished SS 4" tips and 2.5" mandrel-bent tube. Black Ops black matte tip finish is available for an additional fee. This system is engineered for the best sound to match your Jeep and provides increased performance from the increased exhaust flow. Version 3 is the loudest MRT exhaust with enough elevated sound to Get Noticed, plenty of opportunities to Feel the Performance ,and packaged in a design without the excessive drone.

Application: 2018+ Wrangler 3.6L, 4 Door.
For 2 Door models please refer to MRT part #90R140.

Hear the Difference
  • How does it sound? The MRT Wrangler Version 3 JL4 Axle-Back #90R139 has a loud, deep muscle car 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!

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

You might also like:
2018+ Jeep Wrangler MRT Extreme JL Axle Back
Your Price: $199.99
2018+Jeep Wrangler MRT Extreme JL Axle Back Performance Exhaust System 90R137