Performance Sound. Add an exciting exhaust note to the sound of your 2.7L EcoBoost truck's exhaust with a Proven Ground Single Exhaust System. This Proven Ground Exhaust features a round, straight-through perforated muffler that will produce an aggressive performance sound under acceleration, but a mellow tone at idle. Besides an increase in sound, this Cat-Back, with its full mandrel bent piping, will reduce restrictions giving your truck a more free-flowing exhaust for gains in both power and performance.Quality Construction. Proven Ground proudly manufactures their Cat-Back Exhaust system from mandrel-bent, 4-inch diameter, premium grade, 409 stainless steel tubing for excellent exhaust flow and enduring corrosion resistance. This system features a round, straight-through perforated muffler and includes a black finished, 304 stainless steel exhaust tip.Bolt-On Installation. Proven Ground engineered their Cat-Back Exhaust to be a direct bolt-on upgrade replacement. This Exhaust System will easily bolt straight up to the factory piping for an easy straight forward installation. Clamps and instructions are provided. Re-uses OEM exhaust hangers.Application. This Proven Ground 4-Inch Single Exhaust System with Black Tip; Side Exit is designed to fit 2015-2020 2.7L EcoBoost F-150 models.