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Kooks Custom Headers
The Shelby GT500 is the top of the mountain in Mustang circles, which is why the car has spawned so many new products since its introduction in 2007. Kooks [(866) 586-KOOK; www.kookscustom headers.com] has these large-tube headers for the big Snake, featuring 1 3/4-inch primary tubes with 3-inch collectors. The headers are available with a corresponding X-shape crossover pipe, with or without catalytic converters.