dont getany tranmission upgrades and get a 1.5 limite slip, this makes u go fast and if u can afford it jack ur car up with the best off everithing else except for the tranmission and the limited slip. this will make most good cars like a camaro or a skylne o ruf porsche go over 200 mle an hour, ive gotten mineuo to about 264 with y viper and the i run outof room o i know i can go faster