Engine Management Cobb AccessPort, EcuTek, TEC, Motec, Link, and others. The ins and outs of high-performance engine tuning.

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Old 12-21-2011, 05:32 AM
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hey guys, i just wanna know the difference between the grimmspeed and perrin pro. like what are your guys choices and opnion on them? thanks

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Old 12-21-2011, 05:34 AM
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sorry about the.title it would.not let me edit it.or.delete it
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