Description
Overview
The Flowmaster Flow FX Cat-Back Exhaust System is engineered to transform the sound and flow of your 2009-2013 GM Silverado/Sierra 1500 with the 5.3L engine. Built for truck owners who want a genuine performance upgrade without cutting into their weekend, this complete cat-back system delivers an aggressive tone, improved exhaust gas flow, and a custom look that separates your truck from the crowd.
At its heart is the Flow FX “straight-through” muffler, purpose-designed for maximum performance and that deep, aggressive Flow FX sound. The 24.00-inch muffler features a center inlet and dual outlets with a 2.50-inch outlet diameter, working together with mandrel-bent piping that steps from 3.0 inches down to dual 2.50-inch pipes for smooth, unrestricted flow from the cat-back to the tips.
Built to Last
The entire system is manufactured from durable 409 stainless steel throughout, standing up to the heat, moisture, and road grime that comes with daily driving and hard work. The dual tail pipe design exits in front of the rear tire and is finished with dual 4.0-inch black ceramic-coated 304S stainless steel tips, each carrying the laser-etched Flowmaster logo for an unmistakable, aggressive appearance.
Key Highlights
- 409 stainless steel construction throughout for long-term durability
- 3.0-inch to dual 2.50-inch mandrel-bent piping for better exhaust gas flow
- Flow FX “straight-through” muffler tuned for an aggressive sound level and maximum performance
- Dual 4.0-inch black ceramic-coated 304S stainless steel tips with laser Flowmaster logo
- Dual tail pipes exiting in front of the rear tire for a custom look
- CARB (California) compliant, Emission Code 5
Easy At-Home Installation
Designed as a true bolt-on upgrade, the Flow FX system uses all of the existing factory hanger locations, so there’s no need for custom fabrication. Everything you need is included in the kit, from installation instructions to all necessary hardware, making this a straightforward project you can tackle right in your own driveway.
Fitment
This cat-back system is built specifically for 2009-2013 GM Silverado/Sierra 1500 trucks equipped with the 5.3L engine. The muffler is included with the kit, arriving as a complete Flow FX exhaust and tail pipe package with silver muffler and silver pipe finish. It is CARB compliant, making it a smart choice for emissions-conscious states.
Backed by Flowmaster’s lifetime Limited Warranty, the Flow FX Cat-Back Exhaust System gives your Silverado or Sierra the deep, aggressive performance sound and eye-catching tips it deserves, all while retaining the factory-friendly fit that makes installation a breeze.
