you have to do a lot of shit to convert your 2008 civic si (type s) canadian version from DBW, to be able to use KPRO. there is a guy on 8th that did it. look him up. Its not really worth it bro, we now have flashpro which is not the same thing, but hey its fully tuneable. BTW the guy who did the DBW conversion to use the KPRO is also a non street drag only car.. he dropped around 20k in his car, monster turbo, sidewinder manifold (which ment he had to cut out a lot of the firewall) etc etc etc. Just dont do it. If your going NA, yeah get the fpro, cams, skunk2 headers show the biggest gain all across the power band compared to every other header. I can get you one bnib for 750 + shipping instead of close to 800+ shipping just let me know. Also, either get the skunk2 70mm megapowerR exhaust (paired with s2 header sounds dope, like an STi) or get a custom 3". But make sure you get that FlashPro to maximize everything. And intake, its up to you, but i am pretty sure the CAI's make more power than the SRI's.. If you dont want an CAI due to a lot of rain in your area, and fear of hydrolocking.. Dont waste money on an aftermarket SRI, either do the X-Stlyle intake mod yourself, or buy someone elses. If you do it yourself, it'll cost you a few hours and around 40-50 bucks. DYI auto werks ftmfw. Also the best gains out of an SRI than any other if im not mistaken. Most people got it tho, because it didnt bog and shit out like aftermarket ones did for mosts people, because it was the OEM one.. just made a lot better. Hope this all helps. Your english was a little hard to understand, but i think i got to your point.