We just took the supra to the track yesterday. She has greddy sp exhaust, 3" dp, intake, greddy bcc, and a greddy profec b tuned to 17psi. We have kuhmo mx's out back and the best 60ft we could cut was a 2.1 with a 2psi launch. The best et we could get was a 13.8 at 108mph. I thought bpu's were faster on street tires?