Hey don't listen to these morons, they have no idea what it takes to build a car. Maybe how to change a tire on a moped, but thats it. I have a 7m powered 87 mk3 and actually i have heard on stock internals ( of course with ARP headstuds and a MHG ) many 7mgte powered supra's making 450 plus without any damage. Alls i need are 550's and the lexus AFM to get there. LIPP BOSS turbo baby!