yeh its hp not kilowatts. 3lt bottom end with 25 head i wont do bcuz there is alot of mucking around that i would have to do with manifold to intercooler pipe heights and exhaust height cuz the 30 block is slighty taller well it sat higher in my mates gtr when he had a 3026 with a t51r. plus the fact of im lazy and dont wanna do ne other work then wats needed lol. and cheaper not where i live buddy, there is one machine shop and one engine builder and hes mainly based on v8's he abit of a dick to he doesnt like to set-up rb25 heads bcuz they take to much time boo hoo if ya gettin payed wat does it matter lol.... and i also want to be able to rev my car to 8500 and not have to worry my arse off about the bottom flying apart the tomei kit is a very strong combo from wat ive seen from certain cars like top rpm which revs to 9000....