Flowmaster FlowFX Cat-Back For GM Silverado/Sierra 99-07 4.3L-5.3L (717873)

The Flowmaster Flow FX cat-back exhaust system is a high-performance upgrade designed for 1999-2007 Classic Body GM Silverado and Sierra 1500 trucks equipped with 4.3L, 4.8L, or 5.3L engines. Constructed from durable 409 stainless steel, this system features 16-gauge mandrel-bent tubing to ensure unrestricted exhaust flow and enhanced engine performance. The compact, oval "straight-through" Flow FX muffler, positioned behind the catalytic converter, provides a deep, powerful sound with minimal interior resonance, improving both sound quality and driving experience. The stainless steel tailpipe is mandrel-bent and tucked high in the undercarriage to prevent damage during off-road or rocky terrain traversal. Finished with a 4.50-inch black ceramic-coated stainless steel tip embossed with the Flowmaster logo, this system combines durability, style, and performance. It includes detailed installation instructions and hardware for a straightforward, bolt-on upgrade, backed by a lifetime limited warranty.

Designed to fit 1999-2007 GM Silverado and Sierra 1500 trucks with V6 or V8 engines, this system is compatible with Classic Body models. It uses factory hanger locations for a seamless, direct replacement installation. Ideal for street and off-road use, the kit offers a performance-oriented upgrade that enhances exhaust flow, sound, and durability. The system is suitable for daily driving, off-road adventures, or performance tuning, providing a balanced combination of sound and efficiency. The included components and hardware facilitate an easy installation process, making it a practical choice for enthusiasts seeking a reliable, high-quality exhaust upgrade.