Description
Overview
The Flowmaster American Thunder Cat-back Exhaust System is built for the driver who wants a bold, aggressive exterior tone paired with a moderate interior sound that keeps in-cab conversation comfortable. Engineered as a complete cat-back package, the American Thunder® series delivers a proven blend of performance flow and street-ready attitude, all built around Flowmaster’s renowned muffler technology.
At the heart of the system is the Super 50™ Series performance muffler (part number 530562), tuned to produce that deep, aggressive exterior growl while keeping the interior tone moderate so it won’t drive you out of the cab. It’s the perfect balance for enthusiasts who want their truck to sound serious without the constant drone on long highway drives.
Build Quality & Construction
Every component is fabricated from heavy 16-gauge mandrel-bent aluminized steel tubing for lasting durability and maximum performance. The mandrel-bent design maintains consistent pipe diameter through every bend to promote strong, unrestricted exhaust flow. The system runs a 3.00-inch inlet diameter and transitions into dual 2.50-inch tailpipes, finished off with a pair of highly polished 3.00-inch 304 stainless steel tips embossed with the Flowmaster® name for a premium, unmistakable look.
Fitment & Design
This is a 2WD, dual-tailpipe cat-back system designed with real-world installation in mind. The dual 2.50-inch tailpipes are routed to clear the factory spare tire, utilize the factory hanger locations, and exit on the sides behind the rear wheels for a clean, aggressive stance. Because it uses the OE hanger points, the system is engineered for an easy fit that you can tackle at home.
The kit includes all necessary parts, hardware, and instructions, making for a straightforward bolt-on installation without the need for custom fabrication. It is also CARB (California) compliant with Emission Code 5, so it’s a legal upgrade in emissions-regulated states.
Highlights
- Super 50™ Series performance muffler included (P/N 530562) for a deep aggressive exterior tone and moderate interior sound
- Heavy 16-gauge mandrel-bent aluminized steel tubing for durability and strong flow
- 3.00-inch inlet with dual 2.50-inch tailpipes that clear the factory spare tire
- Highly polished 3.00-inch 304 stainless steel tips embossed with the Flowmaster name
- Uses factory hanger locations and exits behind the rear wheels for a clean, aggressive look
- CARB compliant (Emission Code 5) and backed by a 3-year Limited Warranty
Whether you’re chasing a more assertive exhaust note or simply upgrading tired factory pipes, the American Thunder cat-back system brings together aggressive style, quality construction, and a hassle-free install in one complete package. Note: California Proposition 65 Warning applies.
