aFe Twisted Steel Shorty Header 11 17 Ford Mustang V6 3.7L Titanium Coat Finish HONDA 50CC 2HP 4 WerkBull 74 4,5 11 74cc 5.5hp STAHLMAYER KINGTOOL. aFe Twisted Steel Shorty Header 11 17 Ford Mustang V6 3. 7L Titanium Coat Finish This system produced gains of up to +14 HP and +15 lbs. x Ft. TQ., as measured on our in house dyno. This system is constructed of 1 5 8 IN mandrel bent 409 stainless steel tubing for maximum strength and durability. Titanium Ceramic Coat finish reduces outside surface temps of headers, reduces engine compartment temps, and increases header efficiency. Factory style laser cut machined mild steel flanges are used used for a secure leak free seal. 3 to 1 Mitered Merge collectors decrease turbulence and increases exhaust velocity. The result is increased horsepower, torque and improved throttle response. Includes gaskets and lower outlet hardware for a direct bolt on system. No cutting or modifications required for a hassle free installation. Utilizing state of the art computer aided design technology, these headers are designed for custom, high tolerance factory fitment. 100% MIG Welded for race proven strength and durability. Twisted Steel 409 Stainless Steel Shorty Header w Titanium Coat Finish Ford Mustang 11 17 V6 3. 7L