Originally Posted by my94wrx

all version 1/2 pre facelift imprezas ran 380cc injectors weather they were uk/wrx/sti or not.
version 3/4 sti ran 440 yellows and were a direct fitment to phase 1/1.5 fuel rails.
version5/56 imprezas ran 440s irrespective of weather they were uk,wrx,sti and need fuel rail collar adapters as they were were phase 2 engines.

Originally Posted by madscoob

if it helps yellow 440s out of a 1998type r went straight into my 93wrx