aFe is proud to introduce the MACH Force-Xp Cat-Back exhaust system. This exhaust system outflows the factory exhaust. This cat-back exhaust is constructed of 4" mandrel-bent 409 stainless steel tubing and comes complete with free-flowing muffler, OE-style bayonet hangers, band clamps and necessary hardware for a hassle-free installation. The smooth curves and increased diameter of this exhaust system helps remove restriction and keeps exhaust gas flowing smoothly for increased horsepower and torque. The system is finished off with single gloss black 304 stainless steel, single wall slash cut tip for an aggressive style. Installation is a Snap: This MACH Force-Xp exhaust system use all factory mounting locations providing stability and a hassle-free installation. Leak-Free Seal: High quality band clamps are used for a complete 360-degree sealing surface eliminating leak paths. Aggressive Sound: A free-flowing stainless steel muffler is used to absorb high pitch tones producing a powerful sound and unleashing all available horsepower and torque. Perfect Fit: OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The Bayonet tip holds the hanger bushing in place for an OE style fit that does not change with time. MACH Force-Xp 409 Stainless Steel Cat-Back Exhaust System w/ Polished Tip Ford Super Duty F-250/F-350 17-24 V8-6.2/7.3L Ford Super Duty F-250/F-350 17-24 V8-6.2/7.3L