Description
Overview
The Flowmaster Flow FX Cat-Back Exhaust System is a complete bolt-on upgrade engineered specifically for 1996-1999 Chevrolet/GMC 1500 Extended Cab / Short Bed trucks running the 5.7L engine with dual catalytic converters. Replacing the restrictive factory piping from the cats back, this Flow FX system opens up airflow, sharpens throttle response, and gives your half-ton a deeper, more purposeful voice without turning your daily driver into a drone machine.
Built from durable 409 stainless steel, the system is designed to stand up to heat, road salt, and years of hard use. The tubing steps from 3.0-inch down to 2.5-inch and is 16-gauge mandrel-bent, so the exhaust gas flows freely through smooth, consistent bends instead of the crimped restrictions common to stock piping. That free-flowing design is the backbone of the Flow FX performance you feel and hear.
Sound & Muffler
At the heart of the kit is the compact oval Flow FX “straight-through” performance muffler. It delivers a moderate yet deep and powerful exterior tone that announces itself when you get on the throttle, while keeping the interior sound very mild for comfortable cruising and easy conversation on the highway. The muffler measures 24.00 inches in overall length with a center inlet and 2.50-inch outlet, and it is included in the kit.
Tips & Fitment
The system is finished with two 4.50-inch black ceramic-coated 304 stainless steel tips, each embossed with the Flowmaster name, exiting on each side of the truck for a clean dual look. Installation is straightforward: the exhaust mounts using the factory hanger locations, and the kit ships with detailed instructions and all necessary hardware for a quick, at-home install. This is a CARB (California) compliant system, making it a smart choice for emissions-conscious owners.
- Direct-fit cat-back system for 1996-1999 Chevy/GMC 1500 Extended Cab / Short Bed, 5.7L with dual catalytic converters
- 409 stainless steel construction for lasting durability
- 16-gauge, 3.0-inch to 2.5-inch mandrel-bent tubing for free, unrestricted flow
- Compact oval Flow FX straight-through muffler (24.00″ length, center inlet, 2.50″ outlet) included
- Moderate, deep exterior sound with a very mild interior tone
- Dual tail pipes with two 4.50″ black ceramic-coated 304 stainless tips, Flowmaster embossed
- Mounts to factory hanger locations with all hardware and detailed instructions included
- CARB compliant and backed by Flowmaster’s Lifetime Limited Warranty
Whether you’re chasing better flow, a stronger exhaust note, or simply a more finished appearance out back, the Flow FX cat-back gives your 1500 a proven combination of performance-minded design, durable materials, and easy installation. Bolt it on with the factory hangers, keep your cabin quiet, and let the ceramic-coated tips do the talking.
