Description
DescriptionAmerican Thunder Cat-back Exhaust System for Jeep Wrangler JL is the performance exhaust upgrade ideal for drivers looking for a moderately aggressive exterior tone all while keeping interior vibration and resonance at a minimum. This entirely bolt on system greatly enhances flow with a 2.5” mandrel bent inlet pipe and tailpipes finished with two large 4” black ceramic coated exhaust tips for a handsome low profile look. Engineered with the specially designed stainless steel resonator and 80 series cross-flow muffler keep the exhaust growl outside your JL, right where you want it. American Thunder Cat-back is emissions legal in all states and comes with all necessary hardware for a precision fit and easy installation you can do right at home. Backed by a limited lifetime warranty, you can expect this made in the USA exhaust system to perform with durability and reliability for the life of your Wrangler JL, whether it’s a 2 door or 4 door model.
Exceptional flow with great sound: Performance you can feel and hear without sacrificing driver comfort.
Stealthy look: Black ceramic coated muffler and angle cut exhaust tips provide a sharp low profile style and unmatched durability.
Proudly made in the USA: American Thunder exhausts are constructed entirely of stainless steel with the exacting quality standards you expect from Flowmaster.
Installation NotesInstallation Difficulty:Level 2IntermediateInstallation Time:2-4 hours Installation
Instructions Parts Included
- Resonator
- Front Pipe
- Over Axle Pipe
- Muffler
- 2 ½” SS Band Clamp (qty3)
- 7/16” Hanger Keeper (qty 3)
- Hardware
Warranty Limited Lifetime Warranty.






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