Flowmaster 718155 Flow FX Exhaust Kit sku-17735108551

Flowmaster 718155 Flow FX direct-fit exhaust muffler assembly for Chevy and GMC 6.6, sku-17735108551, UPC 090127977781, is listed under Flowmaster. It uses 3.5-inch mandrel-bent, 16-gauge 409 stainless steel tubing for exhaust flow and durability. The kit includes installation hardware and factory-style hangers for stock locations.

Its tuned muffler produces a deep, aggressive to moderate tone, improves exhaust flow and is designed to eliminate interior drone. Claimed maximum gains over the stock exhaust at the wheels are up to 7 hp and 5 lb-ft. It maintains the factory warranty and carries a limited lifetime warranty.