Thats a bit hard to digest, from the factory they are 150kw at the engine, lets say this is 110-120 fwkw, and since Hondas are NA and so well tuned and designed from the factory, no amount of headers, exhaust, intake and VTEC controllers is going to net you that much gain over stock (unlike turbo cars), I think roughly even 30fwkw gain over stock is huge for a Honda. If that Prelude makes 190fwkw without a turbo (unless its the same friend with the turbo H22A?) then thats either pretty phenomenal or too good to be true..