Other mods -- Z32 Afm , sards 550cc injectors , CP pistons,BC rods,ACL bearing all round,255 fuel pump , 3" turbo back free flow , AEM AFR , R33GTR front/rear brakes, Tein coilovers,3.5" large front mount IC, Apexi air filter, apexi twin piston dump valve. 14 row oil cooler remote filter, R34GTR wheels, R34GTR bumper and lights from the car that set the R34GTR lap record of the Nurburgring. Masa body kit with R34GTR rear fenders all painted KH3. Not that most of the mods are relevant to my tread question.
Reason I ask was a tuner told me he would like to push past 400kw on a nistune. He said that after 400kw he would push the nistune due to the basic limits it supports stock.