Did the auto shop advise you that the box will need a couple of refreshes each yeah and prob 1 full rebuild per year? Got 3 mates with T400's all of them go through this each year. 2 of them have more power than your and the other has about 100 less. I think even Karl Moore's brand new T400 has already come out again and it's not even seen the track. Good luck with it though and can't wait to see some mid to low 9's at 150+. "."