Description
Overview
The Flowmaster American Thunder Cat-back Exhaust System is engineered for the driver who wants a bold exterior soundtrack without sacrificing everyday comfort inside the cab. Built from heavy 16-gauge mandrel-bent aluminized steel tubing, this cat-back system is designed for durability and maximum performance, giving your truck the aggressive presence and improved flow you’re after. With a 3.00-inch inlet diameter and dual tailpipe configuration, the American Thunder series delivers a muscular look and a deep, purposeful tone that stands out from the crowd.
At the heart of the system is an aluminized steel Super 50 Series performance muffler (part number 530552), tuned to strike the perfect balance between an aggressive exterior sound and a moderate interior tone. That means you get the head-turning growl you want when you’re on the road, while still being able to hold a conversation inside the cab without being drowned out by drone.
Key Benefits
Mandrel-bent tubing preserves smooth, consistent pipe diameters throughout the system, promoting efficient exhaust flow. The dual 2.50-inch tailpipes are routed to clear the factory spare tire and exit straight out the back, delivering that classic, muscular rear-end look. Because it’s a complete cat-back system, everything you need for a straightforward home installation is included, right down to the hardware and instructions.
- Heavy 16-gauge mandrel-bent aluminized steel tubing built for durability and performance
- Aluminized steel Super 50 Series muffler (P/N 530552) for a deep, aggressive exterior tone with a moderate interior sound
- Dual 2.50-inch tailpipes that clear the factory spare tire and exit straight out the back
- 3.00-inch inlet diameter with U-Bolt clamping for a secure, reliable connection
- Includes all necessary parts, hardware, and instructions for easy at-home installation
- CARB (California) compliant and covered by a 3-year Limited Warranty
Sound Profile & Options
The American Thunder system is purpose-built for an aggressive exterior tone paired with a moderate interior tone. This makes it an ideal choice if you love turning heads with a deep exhaust note but don’t want an overwhelming cabin experience on long drives or daily commutes. Exhaust tips are sold separately, so you can finish the system with the tip style that matches your build. A muffler is included, so the core system arrives ready to deliver Flowmaster’s signature sound.
Fitment
This system is set up for 2WD applications and, per the manufacturer, fits both 2-wheel and 4-wheel drive vehicles and all wheelbases. Note that a heat shield is not included. Always confirm compatibility with your specific vehicle before ordering to ensure the correct fit.
