Just bought the car last week, so I haven't got much experience with it. They won't let me run the cobra in NASA's HPDE because it only has the one roll bar. Maybe I haven't matched the RPMs with the T5 yet, but it seems to shift so easily after the speed comes down, no grinding or anything. I thought it may be something in the transmission blocking it above a certain speed. First T5 I've owned. I thought GM might be protecting their motors
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