Description
Overview
The Flowmaster American Thunder Cat-back Exhaust System is a complete, dual exhaust upgrade built for the enthusiast who wants their performance to be heard. Engineered around mandrel-bent 2.50-inch stainless steel tubing, this American Thunder system is designed to maximize flow while delivering the moderate-to-aggressive tone Flowmaster is known for. It’s the ideal choice for the driver looking for a full cat-back setup that balances real performance gains with a commanding exhaust note.
Sound & Performance
At the heart of the system is a specially selected pair of Super 40 Series performance mufflers, tuned to produce an aggressive exterior tone and a moderate-to-aggressive presence inside the cabin. The 2.50-inch inlet diameter and mandrel-bent stainless tubing work together to improve throttle response, power, and mileage—benefits that come standard across Flowmaster systems. Whether you’re cruising or getting on the throttle, this exhaust makes its presence known without sacrificing everyday drivability.
Design & Fitment
Built with easy fit in mind, the American Thunder system uses the factory hanger locations for a straightforward, at-home installation. Custom tailpipes provide added clearance and exit in the factory location, finishing in a set of large 3.00-inch polished tips for a clean, aggressive look at the rear. The silver stainless tubing and dual tailpipe layout give this system both the sound and the visual upgrade that serious enthusiasts want.
Key Highlights
- Mandrel-bent 2.50-inch stainless steel tubing for maximum flow and performance
- Includes a matched pair of Super 40 Series performance mufflers
- Dual tailpipes with large 3.00-inch polished tips exiting in the factory location
- Moderate-to-aggressive interior and exterior tone
- Uses factory hanger locations for an easy, bolt-on installation
- CARB (California) compliant with Emission Code 5
What’s Included
The complete cat-back system ships with everything needed to get the job done: the mandrel-bent stainless tubing, the pair of Super 40 Series mufflers, custom tailpipes with polished tips, and all necessary hardware and instructions. No heat shield is included, and the system is configured for 2WD applications. Because it’s designed to reuse factory hanger locations, most enthusiasts can complete the installation at home with basic tools.
Why Choose American Thunder
For anyone chasing improved throttle response, added power, and a genuinely aggressive exhaust note, the Flowmaster American Thunder cat-back delivers a proven, well-engineered package. It combines the flow benefits of full mandrel-bent stainless construction with the signature Super 40 Series sound, all in a system built for easy fit and lasting performance. It’s a straightforward way to transform both the sound and the output of your vehicle.
