FlowFX Direct-Fit Cat-back Exhaust for 2021-2024 Ford F-150 Trucks (718172) This Flowmaster FlowFX cat-back exhaust system is for the 2021-2024 Ford F-150 with the 2.7, 3.5 or 5.0-liter engine. This system is manufactured using durable 409 stainless steel tubing and is mandrel-bent for better exhaust gas flow. FlowFX mufflers are used for aggressive to moderate sound levels and maximum performance. This FlowFX direct-fit cat-back system uses 3.00-inch and 2.50-inch mandrel bent 16-gauge 409 stai

These Flowmaster® FlowFX® and Outlaw cat-back exhaust systems are for the 2021-2024 Ford F-150 with the 2.7, 3.5 or 5.0-liter engine. These systems are manufactured using durable 409 stainless steel tubing and are mandrel bent for better exhaust gas flow. FlowFX and Super 10 Series mufflers are used for aggressive to moderate sound levels and maximum performance. Maximum increases on the dyno revealed 18 hp and 20 lb-ft at the rear wheels. These FlowFX cat-back system (718170) uses 4.50-inch bla