my stagea will do 5.65 and thats only on 10psi, no tune, clutch slipping a bit (manuel ) and about 150 awkillerwasps
just a chirp from the rears and away you go
eventually the car will see a highflow, nisstune, new clutch and wider wheels (not really needed)
will be interesting to see how much the extra weight affects things
(stock weight is around 1650-1700kg)