aFe MACHForce XP Cat-Back SS-409 Exhaust 04-08 Ford F-150 4.6/5.4L 2011-subaru-impreza-wrx-sti-limited-esi4114978 From the C5R Le Mans

From the C5R Le Mans winning Corvettes to privateers like KTEC

The valves helps regulate

100% Tubular Steel Bars

especially in older vehicles

aFe MACHForce XP Cat-Back SS-409 Exhaust 04-08 Ford F-150 4.6/5.4L 2011-subaru-impreza-wrx-sti-limited-esi4114978 From the C5R Le MansThe new MACH Force XP exhaust is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 4 in. 409 stainless steel tubing for maximum flow; increased horsepower; increased torque; and lower EGTs. MACH Force XP exhaust systems are the perfect combination of performance; fit; and value. All systems use factory mounting locations providing stability and hassle free installation. High quality OE style band