im thinking a little bit above 265... w/ out a front mount you might get about that but with a fmic or a big smic (supra, rx7, dejon) im pretty sure tuned well (which sectret services does very well, on my car a safc install and tune gave me 25 wheel horsepower and only in 7 passes...) so im thinking about 300 w/ ic upgrade... but you will just have to wait and see... just a word of advise though, dont get hooked on some exact hp number you want becasue thats what i did and i was let down so much when i got my numbers... good luck man