Flowmaster FlowFX Cat-Back Exhaust For GMC Sierra 2500/3500 HD (07-19) (717931)

The Flowmaster Flow FX cat-back exhaust system is designed for 2011-2019 GM Silverado and Sierra 2500/3500 HD trucks equipped with a 6.0-liter engine. Constructed entirely from durable 409 stainless steel, it features 3.50-inch mandrel bent pipes that enhance exhaust gas flow for improved performance. The system incorporates a Flow FX "straight-through" muffler, providing a moderate sound level while maximizing horsepower and torque gains, with dyno results showing an increase of +21 hp and +23 lb-ft at the rear wheels. Exiting out the side behind the rear wheel, it is finished with a 5.00-inch black ceramic tip for a stylish, custom appearance. The design utilizes factory hanger locations and includes all necessary hardware and installation instructions for straightforward, at-home installation. Backed by Flowmaster's Lifetime Limited Warranty, this system offers a reliable upgrade for performance enthusiasts.

This exhaust system is specifically engineered for Crew Cab Short Bed trucks with a 6.5-foot bed within the 2011-2019 model years. It is a direct bolt-on replacement that enhances both sound and performance without requiring modifications. Suitable for street and daily driving applications, it provides a balanced combination of moderate sound and increased power. The kit includes all components needed for installation, ensuring compatibility with the factory exhaust mounting points. Designed to improve exhaust flow and engine output, this Flowmaster Flow FX system is an ideal upgrade for owners seeking a performance boost and a refined, aggressive look.