Description
Overview
The Flowmaster American Thunder Cat-back Exhaust System is built for the driver who wants the classic look of a traditional dual exhaust with all the real-world benefits of a genuine Flowmaster upgrade. Engineered around a specially designed Super 40 Series muffler, this system delivers a moderately aggressive exterior tone paired with a moderate interior tone — muscular and unmistakable on the outside, comfortable enough for daily driving on the inside.
Constructed from mandrel-bent 2.50-inch stainless steel, the American Thunder system promotes smooth, unrestricted flow from the 3.00-inch inlet all the way back. The result is the improved throttle response, added power, and better mileage that Flowmaster systems are known for, wrapped in a package that looks as good as it sounds.
Key Benefits
Every component is designed to work together. The mandrel-bent 2.50-inch stainless tubing feeds into the Super 40 Series muffler, then finishes with dual 2.50-inch mandrel-bent stainless tailpipes capped by a pair of polished 3.00-inch 304 stainless steel tips. It’s an upgrade you can hear, feel, and see.
- Mandrel-bent 2.50-inch stainless steel construction for maximum flow
- Specially designed Super 40 Series muffler for a moderately aggressive exterior and moderate interior tone
- Dual 2.50-inch mandrel-bent stainless tailpipes with polished 3.00-inch 304 stainless steel tips
- 3.00-inch inlet diameter with dual tail pipe configuration
- Improved throttle response, power, and mileage
- CARB (California) compliant — Emission Code 5
- Backed by Flowmaster’s Lifetime Limited Warranty
Tailpipe Exit Options
Choose the tailpipe exit configuration that best suits how you drive. Opt for pipes that exit straight out the back for a muscular, aggressive look, or select the exit-behind-the-rear-wheels routing that is ideal for towing. Either way, you get the same great sound and performance from the Super 40 Series muffler and dual polished tips.
Easy Installation
The American Thunder system is designed for a straightforward, bolt-on fit. It uses the factory hanger locations and includes all necessary parts and hardware, so installation is quick and clean with no need to modify your truck’s mounting points.
Fitment
This system is designed for 4-wheel drive applications only, specifically extended cab / short bed configurations. Please verify your vehicle’s configuration before ordering. Note: this product carries a California Proposition 65 warning.
If you prefer full aluminized steel construction with a 3-year Limited Warranty, consider exhaust system part# 17473 as an alternative. Otherwise, the stainless-steel American Thunder Cat-back is the ideal choice for drivers who want lasting durability, aggressive style, and the proven performance benefits of a Flowmaster exhaust.
