Roush Stage 3 is supercharged from the factory, much like the Saleen S351. They also have upgraded suspension components, brakes, different interior, f/r bumpers, sideskirts, exhaust, hood, various other styling cues.
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2015 Ford Mustang GT Fastback - Ingot Silver - 6M - Performance Package - Gibson Catback, JLT CAI, FR 47lb injectors, BAMA E85 tune, Eibach Sportline, BMR wheel hop kit, UPR oil separator, Steeda shifter bushing/bracket
Team B.O.B.® - Ballaz on a Budget