Flowmaster introduces our Flow FX Extreme stainless steel cat-back exhaust system for the 2007-2021 Toyota Tundra with the 4.7 or 5.7-liter engine. This system uses a Flow FX series muffler for an aggressive to moderate sound level and increased performance. 3.00-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 5 hp and 6 lb-ft of torque 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. Fits 2007-2021 Toyota Tundra 4.7 and 5.7-liter, Flow FX Extreme 3.00-inch Stainless Steel Cat-Back Exhaust System. 3.00-inch 16-gauge mandrel bent stainless steel tubing helps maintain maximum exhaust flow for better power. Flow FX 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. Dump style exit allows for better ground clearance when in extreme off-road conditions. Flowmaster 10-21 Toyota Tundra V8 FlowFX Extreme Cat-Back Exhaust System. Max dyno gains of 5 hp and 6 lb-ft of torque at the rear wheels. Includes all necessary hardware for an at home installation. Uses factory hanger locations for easy installation. Flowmaster Flow FX Extreme Cat-Back Exhaust System. 1021 TOYOTA TUNDRA V8 FFXEXT. Lifetime Limited Warranty. SYS 10-21 TOYOTA TUN. SYS 10-21 TO

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