Shaun13GTCS, so you installed a part that requires you to shift at 7600-7800 every shift but only shifted at 6800-7000 and then you say the intake didn't work? I understand the comparison you were after and admire you trying to take variables out but if you do not use the part as intended it is not a fair comparison. Fix your trans and then test properly is my recommendation.
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2010 GT500
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