throttle body

Are all B-series throttle body interchangeable? like a b18a one on a b16 etc

And will a b18a throttle body mate up to the various intake manifolds(IE type-r, skunk2)?

yes they are i have my b18a on my b16 manifold right now :smiley:

did putting the b18a throttle body on the b16 make any difference in performance?

I was considering this cause I can get my throttle body bored out and a new “flap” put in for next to nothing. Then down the line if I get a B16 I can just swap it over heh