Flowmaster American Thunder D&S Cat-Back Chevy Silverado/GMC Sierra (99-06) (17325)

The Flowmaster American Thunder Cat-Back Exhaust System is a performance upgrade designed for Chevrolet and GMC trucks with a 144-inch wheelbase from 1999 to 2002. Constructed with aluminized steel and featuring a dual inlet 50 Series Big Block muffler, this system provides a deep, powerful exterior tone while maintaining a moderate interior sound. It enhances throttle response, power, and fuel efficiency, offering a subtle custom appearance with a polished stainless steel tip embossed with the Flowmaster logo. The system includes a large aluminum heat shield, stainless clamps, and custom bent tailpipe for durability and style, delivering a balanced sound suitable for enthusiasts seeking performance without excessive noise.

This exhaust system is specifically designed to fit 2WD and 4WD trucks with extended cabs and short beds, featuring a 143.5-inch wheelbase. It attaches directly to the back of the catalytic converter, utilizing factory hanger locations for straightforward installation. The 3.00-inch aluminized steel tailpipe exits behind the right rear wheel, making it ideal for towing and daily driving. The kit includes all necessary hardware and instructions, ensuring a hassle-free upgrade for street and performance-oriented applications.