Hopefully someone can shed some light on the subject, Ive heard a lot of different things about the k20 and what else is needed with the turbo set-up. I am a mechanic so i understand the setup and whatnot but im not entirely sure if any internals would need to be done to be able to withstand the turbo. I was told that the k20 can withstand up to 8psi of booost with the stock internals. I know ill need to upgrade my fuel system on top of what I already have done to the car and I know ill need hondata and a tune. Its a 2010 4 door SI so any help with letting me know of any internal changes I would need to make the the engine would be greatly appreciated, Thanks.