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This listing is for Flowmaster American Thunder Cat-Back Exhaust Fits 21-25 Ford F150 2.7L/3.5L/5.0L

Part Number 817979

Flowmaster built its reputation on a single idea: an exhaust system should deliver real performance gains and a sound the driver actually wants to hear. The company's patented Delta Flow technology uses precisely angled internal chambers to scavenge exhaust gases and cancel unwanted frequencies, producing the deep, aggressive tone Flowmaster is known for without the drone that spoils a long drive. The range spans the well-known Super 40, 40, Super 50 and 10 Series mufflers through to complete mandrel-bent cat-back systems, headers and mufflers built for trucks, muscle cars and daily drivers alike. Every system is designed and tested in the United States and built from aluminized or stainless steel for a long service life.

Flowmaster introduces our new American Thunder stainless steel cat-back exhaust system for the 2021-2026 Ford F-150 with the 2.7L, 3.5L and 5.0L engines. This system uses a Super 40 series muffler for a deep powerful sound and increased performance. Maximum dyno gains of 11 HP and 10 LB.FT. at the rear wheels. Mandrel bent 409 stainless steel tubing is used for maximum exhaust flow and durability. The system has a 3.0-inch inlet pipe and dual 2.5-inch tailpipes with both side exit and rear exit options that allow you to customize the look of the kit. 3.5-inch polished stainless steel tips finish off the kit for a classic performance look. All of the necessary hardware is included and factory-mounting locations are used for an easy installation. Backed by Flowmaster's Lifetime Limited Warranty.

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