Check the listing for details. Flowmaster 717864 Flowfx Cat-Back Exhaust System, 09-14 F-150. Condition: New. Listed at 599.95 USD. Introducing the FlowFX Cat-back exhaust system for the 2009-2014 Ford F-150 with 3.5L Ecoboost, 4.6L, 5.0L and 5.4L engines. This stainless steel performance single exhaust system bolts up to the factory catalytic converter flange with a large 3-inch mandrel-bent tubing flowing into the "straight-through" FlowFX performance muffler. The FlowFX muffler creates a deep powerful sound outside the vehicle with a moderate tone inside the cab. The mandrel-bent tailpipe exits behind the passenger side rear tire and is finished off with a large 4.50-inch black ceramic coated exhaust tip embossed with the Flowmaster name. The system utilizes the factory hanger locations and connections and includes all necessary parts, hardware and detailed instructions for an easy at home installation.