i had a bit of a search but didnt find what i was after

as title, im wondering if the 13bre cosmo intake manifold will bolt onto 13bt from FC

im quite sure it wouldnt fit S4 but S5 ports are a little bigger

im talking about both upper and lower bolting on - is this possible?

or would i say have to use S5 lower and cosmo top?

thanks

 

No. The ports are not only larger, but they're positioned differently. Search on how to use an FD UIM; it's similar.