Flowmaster FlowFX Cat-Back DOS Exhaust For GM Silverado/Sierra 99-07 (717924)

The Flowmaster 99-06 GM 1500 V6/V8 FlowFX Cat-Back Exhaust System is a high-performance exhaust upgrade designed for 1999-2007 Classic body GM Silverado and Sierra 1500 trucks equipped with 4.3L, 4.8L, or 5.3L engines. Constructed entirely from durable 409 stainless steel, this system features a 3.00-inch inlet pipe that connects to a single inlet/dual outlet Flow FX "straight-through" muffler, delivering an aggressive sound and maximum performance gains. The dual 2.50-inch mandrel-bent tailpipes exit at an angle behind the rear wheels, effectively directing exhaust away from trailers or boats when towing. Finished with large 4.50-inch black ceramic coated stainless steel tips, the system offers a custom appearance that complements its deep, performance-oriented sound. It utilizes factory hanger locations and includes an additional hanger for the left side tailpipe, along with all hardware and instructions for straightforward installation.

Designed for 1999-2007 GM Silverado and Sierra 1500 models with either 2WD or 4WD and a 143.5-inch wheelbase, this cat-back exhaust system is a direct bolt-on upgrade suitable for street and towing applications. It enhances exhaust flow, sound, and overall vehicle performance while maintaining compatibility with the stock chassis. The system is ideal for daily drivers seeking improved sound and efficiency, as well as for towing scenarios where directing exhaust away from trailers is beneficial. The included hardware and detailed instructions facilitate easy installation at home, making it a practical choice for enthusiasts looking to upgrade their truck’s exhaust system with a durable, high-quality component.