Upgrade your truck’s exhaust performance and sound with the Flowmaster Flow FX Cat-Back Exhaust System, part number flo717787. This system is designed for 2014-2019 Chevrolet Silverado 1500 and GMC Sierra 1500 Crew Cab and Double Cab models with 4.3L or 5.3L engines, including Classic body configurations. It delivers a moderate to aggressive exterior and interior sound while providing the improved exhaust flow and performance expected from Flowmaster. This system does not fit Crew Cab 2WD models equipped with a two-piece driveshaft.
Constructed from durable 409S stainless steel mandrel-bent tubing, the Flow FX system uses a straight-through performance muffler designed for efficient exhaust flow and a deep, aggressive tone. Dual 2.50-inch tailpipes route the exhaust ahead of the rear passenger-side tire and are finished with large 4.00-inch black ceramic-coated 304 stainless steel tips for a distinctive muscle-truck appearance. Dyno-tuned development supports strong performance while maintaining the system’s moderate-to-aggressive sound profile.
The Flowmaster flo717787 cat-back exhaust system is engineered for straightforward installation and includes the required clamps, hangers, hardware, and detailed instructions. Its durable materials and quality construction are suited for drivers seeking a long-lasting truck exhaust upgrade. A lifetime limited warranty is included for added ownership confidence. Verify vehicle configuration, drivetrain, cab style, engine, and body style before ordering. This product may be subject to applicable emissions requirements; confirm compliance for your location and vehicle.
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