Description
Overview
The Flowmaster Flow FX Cat-back Exhaust System is a bolt-on upgrade engineered for the 2009-2021 Toyota Tundra equipped with the 4.6L, 4.7L or 5.7L engine. Built for the truck owner who wants a moderately aggressive tone paired with the proven performance you expect from Flowmaster, this complete cat-back system delivers a deep, powerful sound outside the truck and a deep, mellow tone inside the cab — all while remaining emissions legal and CARB (California) compliant.
At the heart of the system sits the Flow FX straight-through performance muffler, fed by dual 2.50-inch stainless steel mandrel-bent inlet tubes. The mandrel-bent design keeps exhaust flow smooth and unrestricted, releasing the performance benefits that have made Flowmaster a trusted name in aftermarket exhaust. Dual 2.50-inch tailpipes route the exhaust to exit in front of the passenger-side rear tire, finished with a pair of large 4.00-inch double-wall black ceramic coated stainless tips featuring a laser-etched logo for a clean, aggressive appearance.
Key Benefits
This system is designed to be a straightforward at-home installation. It uses the factory hangers and includes all necessary parts, hardware and detailed instructions, so there’s no need for custom fabrication. The 20.00-inch overall length Flow FX muffler and silver-finished piping combine performance-minded engineering with a durable, purposeful look under your Tundra.
- Dual 2.50-inch stainless steel mandrel-bent inlet tubes for smooth, high-flow performance
- Flow FX straight-through performance muffler for a deep, powerful exterior tone and a deep, mellow in-cab sound
- Dual 2.50-inch tailpipes exiting in front of the passenger-side rear tire
- Large 4.00-inch double-wall black ceramic coated stainless tips with a laser-etched logo
- Bolt-on design that uses factory hangers with all hardware and instructions included
- Emissions legal and CARB (California) compliant
Sound Character
Flowmaster tuned the Flow FX to hit that sweet spot between aggressive and moderate. Outside the truck you get a deep, powerful note that announces itself without being obnoxious, while inside the cabin the tone stays deep and mellow — refined enough for daily driving and highway cruising, yet unmistakably upgraded.
Fitment
This cat-back system fits 2009-2021 Toyota Tundra models with the 4.6L, 4.7L or 5.7L engine in both 2-wheel and 4-wheel drive configurations with a 145-inch wheelbase. It does not fit standard cab shortbed or Double cab long bed models. Please note this product carries a California Proposition 65 warning.
Upgrade your Tundra with a complete, ready-to-install exhaust package that balances performance, sound and appearance in one bolt-on kit.
