717976 Flowmaster introduces our FlowFX Extreme stainless steel cat-back exhaust system for the 2014-2019 Chevrolet/GMC Silverado/Sierra 1500 with the 4.3 or 5.3-liter engine. This system uses a FlowFX series muffler for an aggressive to moderate sound level and increased performance. 3.0-inch mandrel bent 409 stainless steel tubing allows for maximum exhaust flow and durability. The system has a turndown style, dump exit right after the muffler to eliminate the over-axle tailpipe. This elimination of the tailpipe helps improve ground clearance and departure angle when you are driving in more extreme off-road situations. This system produced max dyno gains of 11 hp and 15 lb-ft at the rear wheels. All of the necessary hardware is included, and factory-mounting locations are used for an easy installation. Backed by Flowmaster's Lifetime Limited Warranty. Features: FlowFX Series performance muffler offers an aggressive to moderate sound level and increased performance 409 stainless steel construction delivers extra durability and improved long-term corrosion resistance Max dyno gains of 11 hp and 15 lb-ft at the rear wheels 3.00-inch 16-gauge mandrel bent stainless steel tubing helps maintain maximum exhaust flow for better power Includes all necessary hardware for an at home installation Dump style exit allows for better ground clearance when in extreme off-road conditions Uses factory hanger locations for easy installation Lifetime Limited Warranty About Flowmaster Flowmaster® is a household name, and for good reason. They've built legendary exhaust systems and mufflers for decades, and now offer performance air intakes, catalytic converters, and headers to give your hot rod performance to match the iconic Flowmaster sound. Instructions for Part# 717976 Warranty for Part# 717976
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