Description
Overview
The Flowmaster® Flow FX® cat-back exhaust system is engineered specifically for 2022-2026 Toyota Tundra trucks equipped with the 3.4-liter engine. Built from durable 409 stainless steel throughout, this complete exhaust system replaces the restrictive factory piping with a purpose-built performance exhaust that improves flow, enhances tone, and adds a genuine custom look to the back of your Tundra. If you have been searching to shop for exhaust upgrades that bolt on without cutting or fabrication, this Flowmaster catback exhaust delivers a straightforward, at-home installation.
At the heart of the kit is the Flow FX “straight-through” muffler, a 24.00-inch design that produces an aggressive to moderate sound level while promoting maximum exhaust gas flow. Paired with dual 2.50-inch mandrel-bent pipes, this exhaust system keeps flow smooth through every bend so your 3.4L Tundra breathes freely from the cat back to the tips.
Key Benefits
Every part of this Flowmaster exhaust system is designed to work together as a matched, tuned unit. The system exits out the side, in front of the driver’s rear wheel, and finishes with dual 4.00-inch black ceramic tips that carry an embossed logo for a factory-plus, finished appearance. Because the kit uses all of the existing factory hanger locations, alignment is simple and the exhaust pipe sits exactly where it should without added brackets.
- Durable 409 stainless steel construction throughout for long-lasting corrosion resistance
- Dual 2.50-inch mandrel-bent exhaust pipe for improved exhaust gas flow
- Flow FX straight-through muffler tuned for an aggressive to moderate sound level and maximum performance
- Dual 4.00-inch black ceramic tips with embossed logo for a custom look
- Side-exit design that vents in front of the driver’s rear wheel
- Mounts using factory hangers — includes installation instructions and all necessary hardware
- CARB (California) compliant with Emission Code 5
Options & What’s Included
This is a complete cat-back exhaust system kit that includes the Flow FX muffler, dual 2.50-inch mandrel-bent piping, dual 4.00-inch black ceramic tips, and all the hardware and instructions needed for installation. The silver pipe and silver muffler finish are complemented by the black ceramic tips, giving the system a clean, layered appearance under the truck. With everything supplied together, the kit is designed as a true at-home install for capable DIYers.
Fitment
Designed and validated for the 2022-2026 Toyota Tundra with the 3.4-liter engine, this Flowmaster performance exhaust system uses the factory hanger locations for a proper fit. Note that this product carries a California Proposition 65 warning. Whether you’re comparing a Borla exhaust, Corsa exhaust, MagnaFlow exhaust, or Walker exhaust, this Flow FX catback exhaust stands out for its straight-through performance design and is backed by Flowmaster’s Lifetime Limited Warranty.

















