horse shit, there is numerous 300rwkw unopened RB25s around eg Revheads old car
and a S15 SR with the usual exhaust, cooler, boost and computer mods will make like 190rwkw, in fact at the last slivia dyno day in NSW not a single stock turbo car made more than 200...I call shenannigans on you Marki..either that or delusions