Shelby GT500 Mustang American Racing Headers

Complete Performance Long Tube Headers Package for the 2007 and newer Ford Mustang Shelby GT500

Arguably the most amazing hot rod to ever exit a Ford factory, the Shelby GT500 is here. With a mountain of horsepower just waiting to be unleashed, American Racing Headers’ bolt in long tube header systems can increase power and torque by as much as 40RWHP and 40RWTQ. Like all American Racing Headers’ systems, construction is all 304 S/S, flanges are 3/8" laser cut and collectors are merge style and incorporate scavenger spikes. X-pipes include 200 cell high flow metallic cats or can be ordered without cats. 1-3/4" primaries come standard. For high boost race applications, special order headers with 1-7/8" or 2" primaries are available as well.

The installation of an aftermarket header system alters the manner in which your engine runs so drastically, and changes performance so much that a custom tune is required with each installation. Please note that 1 7/8" and 2" header systems are only necessary for high-boost and highly modified applications, and will not run properly with a Mustang that is closer to stock. Please select your desired system from the drop-down menus below.