When running on track...disable the tune. More boost = more heat = more chance of limp mode. This car makes plenty of power and tq for track. Invest in bushing, dampers and weight reduction. Your engine will last longer and you'll be a better driver because of it. Power isn't everything. I routinely pass e9x M3's like they're sitting still through the corners.
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Faster, faster, faster, until the thrill of speed overcomes the fear of death… – Hunter Thompson
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