Break in period is a minimum of 250 miles of city driving, stop and go...without riding the clutch, launching, hard shifting, or hard acceleration. If you glazed the disc, it'll start to slip.
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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