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Our test car is an '11 GT coupe with a six-speed manual trans. Its modifications included a JLT cold air induction system, an off-road H-pipe, and Magnaflow competition mufflers. We started by having Jim D'Amore apply his tuning acumen to create a strong baseline. Jim likes to tune his customer rides to have a consistent power curve, so he brings in the cam timing stronger but carries it throughout the power curve. As such, there is no early hit followed by a plateau-it pulls strong all the way.