• HEAR THE DIFFERENCE, FEEL THE PERFORMANCE, GET NOTICED!

  • NEED HELP? CALL US! (734) 455-5807

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2018+Jeep Wrangler MRT Extreme JL Axle Back Performance Exhaust System 90R137

MRT 304 Stainless Axle-back: 2018+ Jeep Wrangler 2&4 Door #90R137

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2018+ Jeep Wrangler MRT Extreme JL Axle Back

Retail Price: $239.99
$
$169.99
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MRT Part# 90R137Loudness: 9 Drone: 3 Performance: 8

Application: 2018+ Wrangler JL 2&4 Door 3.6L
Tune: None Required
Time to Install: 60 Minutes
Choose your options:
Available Options:
Item Code: 90R137
Usually Ships in 1 to 2 Business Days

This product qualifies for FREE SHIPPING!

The MRT Wrangler 3.6L Off The Grid JL 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 2.5" mandrel bent tube. There is a Turndown tip on this system for optimal ground clearance. This system is engineered for the best sound to match your Jeep and provides increased performance from increased exhaust flow. It was designed with off-roading in mind. Off The Grid is the loudest MRT exhaust with enough elevated sound to Get Noticed, plenty of opportunity to Feel the Performance and packaged in a design without excessive drone.

Application: 2018+ Wrangler 3.6L, 2 and 4 Door.

Hear the Difference
  • How does it sound? The MRT Wrangler MRT Extreme JL Axle Back #90R137 has a loud, deep muscle 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
Product Quality
  • 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)
Feel the Performance
  • What is the muffler design? Straight through design to provide maximum exhaust gas flow.
  • What is the tube diameter? A large 2.5" tube is used for reduced exhaust flow restrictions.
  • What are the performance gains? Reducing restriction and maximizing flow provides for noticeable gains.
Get Noticed
  • What kind of tip is it? No Tips. Turn down 2.5" T304 SS pipe for optimal off-road ground clearance.
  • What are my tip finish options? None,there arent any tips on this system.
  • 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 1 hour and requires only common hand tools.
  • What is included? All necessary hardware included.
  • Note: No products will be accepted for return after installation has occurred.



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