i have a 99 civic with gsr motor and need a new intake. iv asked this b4 but didnt really get the answer i needed. so if anybody has the same swap i need to know whether or not i need to buy a b16 or b18 intake or are they the same. thanks

 

u are talking aboutthe intake manifold right? if soi'm pretty sure u will need a B18 gsr intake. i don't think they are the same/interchangable.

 

i say an AEM hybrid intake for a B18 gsr motor for your body style, it should fit fairly nicely, that is if they make one for your model.