Description
Overview
The Flowmaster American Thunder Cat-Back Exhaust System is engineered to transform the exhaust note and rear-end presence of the 2020-2026 Jeep Gladiator equipped with the 3.6L engine. Built around Flowmaster’s proven American Thunder platform, this complete cat-back kit pairs mandrel-bent stainless steel construction with the iconic Super 44 Series muffler to deliver a deep, moderately aggressive exterior tone while keeping the interior sound level comfortable for daily driving. It’s a bolt-on upgrade designed to give your Gladiator a more muscular voice and a purposeful look behind the rear wheels.
Airflow starts at a large 3.00-inch inlet tube that feeds directly into the Super 44 muffler, a design known for its smooth, powerful growl. The 19.00-inch muffler features a center inlet and offset outlet, with a black finish that blends cleanly under the truck. From there, 2.50-inch mandrel-bent dual tailpipes are carefully routed to clear the factory spare tire and exit behind the rear wheels, finishing the system with an aggressive, dual-outlet stance.
Key Benefits
Because the system mounts to the factory hanger locations, installation is straightforward and can be completed at home with the included parts, hardware and detailed instructions. Everything you need for the job comes in the kit, so there’s no guesswork getting the exhaust fitted and dialed in. The finished setup is topped off with a pair of 3.50-inch polished 304 stainless steel tips, each embossed with the Flowmaster logo for a clean, branded look that stands up to the elements.
- Mandrel-bent stainless steel construction with a silver pipe finish for consistent flow and durability
- Super 44 Series muffler (19.00-inch length, center inlet, offset outlet) tuned for a deep, moderately aggressive sound
- 3.00-inch inlet tube feeding into 2.50-inch mandrel-bent dual tailpipes
- Dual rear-exit tailpipes routed to clear the factory spare tire and exit behind the rear wheels
- 3.50-inch polished 304 stainless steel tips with embossed Flowmaster logo
- Uses factory hanger locations for a bolt-on, at-home installation
Sound & Style
The Super 44 muffler is the heart of the aggressive character here, producing a deep, moderately aggressive exterior sound paired with a moderate interior tone. That balance means you get a genuinely muscular presence when you want it, without an overwhelming drone on longer drives.
Fitment
This American Thunder cat-back system is specifically designed for 2020-2026 Jeep Gladiator trucks with the 3.6L engine. The kit is CARB (California) compliant and carries Emission Code 5. Please note the California Proposition 65 warning. A heat shield is not included with this system, and the muffler ships as part of the complete kit. The system is backed by Flowmaster’s Lifetime Limited Warranty.
