FMAX is crap. You pay more for their kit for their fuel management, and it's absolutely no good. I'm partial to the greddy kit, and it can produce good numbers. I just like the way the kit fits, and it includes everything you need down to the last fitting.
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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