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  1. Mustang EcoBoost Performance
    I have the Procal 3 tune in the '15 ecostang. I thought about turning the car back to stock and trying out the Roush Stage 1 or 2 Power Pacs. Does anyone here have any experience with the Rouse Stage 1 or 2 Pacs in these cars, or have any of you done the ProCal 3 and went back to stock so you...
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