i had a quick question if you swap well any kind of b-series or h-series engine into a civic crx accord do you have to get different types of headers air intakes and that type of stuff like for instance would i have to get an intake for my 99 civic hb if it had the b18 in it or would i have to get an intake that fits the b18 and say the integra or would it fit because the engines ar different sizes does anyone understand my question?

 

some are interchangeable, but some will give you problems, like the manifold on a gsr motor sits lower and most intakes wont fit, it has to be a gsr intake. and most SRI will fit a d or b series. header will be different though. except the gsr, most 92+ civics use the 99-00 si intake just fine with a swap.