People like to use the LS gearing in turbo applications for better traction due to longer gears, and longer gears mean you stay in full boost longer. I'd go personally with a GSR tranny, but a cable GSR is hard to find.
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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