Originally posted by Highrpmek
some might get a few extra horses but not nearly as much as what other headers can give (mugen, spoon, comptech, toda, JDMITR, Hytech etc.) Im also not sure but i dont think that vtec b series header bolt patterns are not the same as b series non vtec, but like i said im not sure on that.
I was told that all B-series motors have the same bolt pattern, although I do not know this for a fact. I'd like to ask your opinion. Since I have to buy an exhaust and high flow cat anyway, should I look for another header while I'm at it?