I have a gsr and just put in some skunk2 cams. I now have my gsr cams and have no use for them. I was wondering if these will just fit right into a civic Si because I know some people with Si's around here that I could possibly sell these cams too if they will fit in and help out in power. Is there anything else that would need to be done or can they just go right in and work just fine? And would there be much power gains at all?