Description
Overview
The Flowmaster American Thunder® cat-back exhaust system is custom designed for 1996-1999 Chevrolet Silverado and GMC Sierra 2500/3500 trucks equipped with the 5.7L and 7.4L engines. Built for owners who want real performance without an overly aggressive drone, this bolt-on catback exhaust delivers a moderate sound level both inside and outside the cab while unlocking the flow and tone that Flowmaster is known for. If you have been searching for a proven performance exhaust upgrade for your Chevy or GMC big-block truck, this complete exhaust system kit was engineered to fit and perform.
Sound & Performance
At the heart of this system is a dual 3.00-inch inlet 50 Series Big Block™ muffler tuned to produce a deep, powerful tone that stays comfortable on the highway and around town. The single 3.00-inch aluminized steel mandrel-bent tailpipe promotes smooth exhaust flow and is finished with a turndown-style exhaust tip that exits behind the right rear wheel — an ideal configuration for towing and heavy-duty work. When you shop for exhaust that balances attitude and drivability, this Flowmaster exhaust system hits the mark.
Fit, Finish & Installation
This is a true bolt-on, emissions-legal exhaust system that uses the factory hanger locations for a straightforward, at-home installation. Every kit includes the muffler, aluminum heat shield, stainless steel U-bolt clamps, and all necessary parts and hardware, so you have what you need to complete the job in your own garage. The silver-finished aluminized steel construction and mandrel bends make this a clean, durable replacement for tired factory exhaust pipe. Backed by a 3-year Limited Warranty and CARB (California) compliant, it is a confident choice for daily-driven and work trucks alike.
Fitment
Designed specifically for 1996-1999 Chevrolet Silverado and GMC Sierra 2500/3500 trucks with the 5.7L or 7.4L engine. Fits 2WD and 4WD extended cab / long bed configurations as well as Crew Cab Dually models, covering 155-inch and 168-inch wheel bases. Please note this kit ships with a California Proposition 65 warning; exhaust tips are sold separately.
Highlights
- Flowmaster American Thunder® cat-back exhaust system engineered for 5.7L / 7.4L Chevy and GMC 2500/3500 trucks
- Dual 3.00-inch inlet 50 Series Big Block™ muffler for a deep, moderate tone inside and out
- Single 3.00-inch aluminized steel mandrel-bent tailpipe with towing-friendly turndown tip behind the right rear wheel
- Bolt-on, emissions-legal design using factory hanger locations for easy home installation
- Includes aluminum heat shield, stainless steel U-bolt clamps, and all mounting hardware
- CARB compliant and backed by a 3-year Limited Warranty
