Im looking to put a FMIC on my s13 i searched but all i found were FMICs for sale i couldnt find anything on what is the biggest size that will fit or the easiest size to fit. i wanna know what sizes people have used and which are easiest or best. i have the rb20 and am gonna upgrade to a t3/t4 hybrid turbo.

 

you dont want a huge IC its just more space to fill, stock with a nice reasonable IC and be done with it

call spearco and they can size a core for you.

 

there's no point in having an uber-monster-huge-*** intercooler unless you are running an uber-monster-huge-*** turbo and engine setup... call spearco, find a good size, that's big, but fits properly