Description
Overview
The Flowmaster Chevrolet, GMC (6.0) Exhaust System Kit is a complete American Thunder cat-back exhaust system engineered for the truck enthusiast who wants a subtle custom appearance backed by genuine performance. Built around Flowmaster’s proven 50 Series Big Block muffler, this exhaust system delivers a moderate interior tone paired with a deep, powerful exterior sound — aggressive without being obnoxious. If you’ve been looking to shop for exhaust that improves how your 6.0 truck breathes and sounds, this is a bolt-on performance exhaust that hits the mark.
The dual-inlet 50 Series Big Block muffler is the heart of the setup, tuned to produce that signature deep note while keeping cabin drone in check. Attaching directly to the back of the catalytic converter, the system uses factory hanger locations for a straightforward installation with all necessary parts, hardware, and easy-to-follow instructions included.
Key Benefits
Like all Flowmaster catback exhaust systems, this American Thunder kit is designed to improve throttle response, power, and mileage. The custom-bent 3.00-inch aluminized steel tailpipe exits behind the right-side rear wheel — an ideal layout for towing — and is finished with a large 3.50-inch polished 304 stainless steel exhaust pipe tip embossed with the Flowmaster logo for a clean, purposeful look.
- American Thunder series exhaust system with an aggressive sound level — moderate inside, deep and powerful outside
- Dual-inlet 50 Series Big Block muffler included, plus a large custom-formed aluminum heat shield with stainless clamps
- 2.75-inch inlet diameter and a custom-bent 3.00-inch aluminized steel tailpipe in a silver finish
- Single tailpipe exits behind the right-side rear wheel — ideal for towing
- Large 3.50-inch polished 304 stainless steel tip embossed with the Flowmaster logo
- CARB (California) compliant, Emission Code 5
Sound & Performance
Where a raw straight pipe can be loud and tiring, this Flowmaster car exhaust is tuned for real-world driving. The 50 Series Big Block muffler produces a deep, powerful exterior tone that lets your performance be heard, while keeping the interior tone moderate for comfortable daily driving, highway cruising, and towing. The heat shield attaches directly to the muffler body for added protection and a finished appearance.
Fitment
This exhaust system kit fits 2WD and 4WD trucks in the extended cab / short bed configuration with the 6.0 engine. It uses the factory hanger locations, so the custom exhaust pipe and tailpipe drop into place with minimal effort. Please note the California Proposition 65 warning applies. Whether you’re upgrading from a tired factory setup or shopping for a proven performance exhaust upgrade, this complete cat-back kit delivers sound, style, and function in one package.
