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Flowmaster American Thunder Dual Exhaust System with Polished Tips; Side Exit (20-21 3.6L Jeep Gladiator JT)

Item JG1333
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Market Price $666.99 You Save 12% ($77.04)
Our Price

$589.95 (kit)

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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Produces a Bold, Aggressive Exhaust Sound
      • Enhances Exhaust Flow for Improved Performance
      • Super 44 Performance Muffler
      • Includes a Y-Pipe
      • Crafted Using Premium Stainless Steel, 2.50-Inch Mandrel-Bent Tubing
      • Comes With 3.50-Inch, Polished Stainless Steel Tips
      • Dual Side Exit
      • Bolt-On Installation
      • Backed by a Limited Lifetime Warranty
      • Made in the USA
      • Fits All 2020-2021 3.6L Jeep Gladiator JT Models


      Powerful Aggressive Growl. Boost your Gladiator’s engine power with an aggressive exhaust sound by replacing your factory exhaust system with the Flowmaster American Thunder Dual Side Exit Exhaust System with Polished Tips. This kit features resonant tuning chambers that innovatively produce moderate interior sound with overall improved quality and control.

      Optimum Performance. The super 44 performance muffler offers superior capabilities in scavenging and refocusing of the exhaust gases. Its Power Chamber and Delta Flow technologies innovatively regulate precise phase shifts to maximize power gains. Moreover, the resulting increase in horsepower and torque provide the Jeep with a significantly improved overall vehicle dynamics, both on and off the road.

      High-Quality Construction. Flowmaster equipped its American Thunder Exhaust System with long-lasting durability. It is constructed from high-strength, stainless steel with mandrel-bent tubing. The fierce exterior is further reinforced with the exhaust tips, suitably made from 304 stainless steel and polished finish. Additionally, this entire exhaust system is engineered to handle harsh driving conditions, including the constant attacks from the corrosive exhaust gases and thermal stress from catalytic activities.

      Bolt-On Installation. This exhaust system installs directly into the factory mounting points of your vehicle. It includes all the necessary hardware for a hassle-free installation process that requires the use of simple hand tools with moderate mechanical skills.

      Application. The Flowmaster American Thunder Dual Side Exit Exhaust System with Polished Tips is intended for use on all 2020-2021 3.6L Jeep Gladiator JT models.

      Fitment: 2020 2021 Details

      Flowmaster 817913

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Muffler Assembly
      • (1) Inlet Pipe
      • (1) Y-Pipe
      • (1) Driver Side Exit Pipe
      • (1) Passenger Side Exit Pipe
      • (2) Exhaust Tips
      • (2) Three-Inch Band Clamps
      • (2) 2.50-Inch Band Clamps
      • (1) Ha

      Customer Reviews (100+)

        Questions & Answers

        10 More Questions

        Will It Fit My Gladiator