Description
Overview
The Flowmaster Flow FX Cat-Back Exhaust System is engineered to upgrade your 2007-2009 Toyota Tundra with the 5.7-liter engine, delivering improved exhaust gas flow, a more aggressive tone, and a custom look right out of the box. Built from durable 409 stainless steel throughout, this system is designed to stand up to the elements while adding real performance and style to your truck.
At the heart of the system is the Flow FX “straight-through” muffler, which produces a moderate sound level while maximizing airflow and performance. On the dyno, this cat-back system delivered maximum increases of +3 horsepower and +4 lb-ft of torque at the rear wheels, giving you measurable gains you can feel behind the wheel.
Key Benefits
The 2.5-inch mandrel-bent pipes are designed to keep exhaust gases moving smoothly, reducing restrictions that rob power. This dual system exits out both sides, behind the rear wheels, and finishes with 4.50-inch black ceramic tips featuring an embossed logo for added style and a distinctly custom appearance.
- Durable 409 stainless steel construction throughout for long-lasting corrosion resistance
- 2.5-inch mandrel-bent pipes for better exhaust gas flow
- Flow FX straight-through muffler delivers a moderate sound level and maximum performance
- Dyno-proven gains of +3 hp and +4 lb-ft at the rear wheels
- Dual side-exit design with 4.50-inch black ceramic tips and an embossed tip logo
- CARB (California) compliant for street-legal peace of mind
Easy At-Home Installation
Designed with the do-it-yourselfer in mind, this system uses all the existing factory hanger locations, so there’s no need for custom fabrication or added brackets. It includes installation instructions and all the necessary hardware, making it a straightforward upgrade you can complete in your own garage. The silver muffler and silver pipe finish are complemented by the bold black ceramic tips for a clean, finished look.
Fitment
This Flow FX cat-back system is engineered specifically for 2007-2009 Toyota Tundra trucks equipped with the 5.7-liter engine. It fits both 2- and 4-wheel drive models and all wheelbases built before 08/01/2008. The 24.00-inch overall length muffler features dual inlets and dual 2.50-inch outlets, with the muffler included as part of the complete kit.
Backed by Flowmaster’s Lifetime Limited Warranty, the Flow FX cat-back exhaust is a confident choice for Tundra owners who want proven performance, a moderate yet aggressive sound, and a custom look that lasts. Please note: this product carries a California Proposition 65 warning.















