Description
Overview
The Flowmaster Flow FX Cat-Back Exhaust System is engineered to deliver a deep, aggressive-to-moderate exhaust note while unlocking the airflow your truck deserves. Built using durable 409 stainless steel throughout, this complete cat-back kit pairs proven Flowmaster performance with a custom look that transforms both the sound and the appearance of your truck.
At the heart of the system is the Flow FX “straight-through” muffler, featuring a single inlet and dual outlet design measuring 24 inches in overall length. A 3.00-inch inlet pipe feeds the muffler for great sound and maximum performance, while the center inlet location and dual 2.50-inch outlets keep exhaust flowing freely and efficiently.
Key Benefits
Dual 2.50-inch mandrel-bent tailpipes exit out the side at an angle behind the rear wheels, directing exhaust away from your boat or travel trailer when towing. That thoughtful routing makes this system especially practical for truck owners who tow. The setup is finished with a pair of large 4.50-inch diameter black ceramic coated 304S stainless steel tips, each with an embossed logo, giving your rig an unmistakable custom presence that goes hand in hand with that deep Flow FX tone.
- Constructed from durable 409 stainless steel throughout for long-lasting corrosion resistance
- Flow FX single-inlet / dual-outlet straight-through muffler, 24.00-inch overall length, center inlet, dual 2.50-inch outlets
- 3.00-inch inlet pipe with dual 2.50-inch mandrel-bent tailpipes for smooth, unrestricted flow
- Large 4.50-inch black ceramic coated 304S stainless steel tips with embossed logo
- Side-exit angled tailpipes route exhaust away from trailers and boats when towing
- Aggressive / moderate sound level with silver pipe and muffler finish
Easy, Bolt-On Installation
This system is designed to make installation straightforward for the home mechanic. It uses all the existing factory hanger locations and includes an additional hanger to install the new left side tailpipe. Installation instructions and all necessary hardware are included, so you have everything you need for a clean, confident install in your own garage. The kit relies on factory hangers, keeping the process simple and secure.
Fitment
The Flow FX cat-back is CARB (California) compliant, carrying Emission Code 5, and fits 2/4WD models with 143.5-inch and 153-inch wheelbases, as well as 2019 Classic body models. Always confirm your wheelbase and body style to ensure correct fitment before ordering.
Warning: California Proposition 65. This product is offered as a complete kit and the muffler is supplied as part of the kit only. No heat shield is included.














