www.specclutch.com for the upgrade for the clutch renntech said that the 6 speed can easly handle 400 hp and torque. so there nothing to really upgrade with the trans. yeah i hope you guys get around 450 or more. i'm sure i'll be investing if so, www.kicker.com has a crossfire they re-did with black wheels kinda nice. It looks like your kinda far along with your kit so far, so i'm guessing not to much more to do except tunning. you guys should try to make a rear mounted turbo too, www.ststurbo.com they are easy to install ect... definitely going to be a Z killer. heck a TT z killer with those numbers, and i'm guessing low 11's to high 10's for the 1/4 tiimes. well just have to wait and see.