I've been looking, but cant find anything.

 

only thing ive seen is the jdm rear lip for the zc crx. and a xenon lip but its pretty fugly, if u dont have the matching sides and front.

with the zc lip you have to have the 88-89 rear bumper to make it work.

 

go to ur nearest junk yard and get a 90 integra front lip hold it to ur rear bumper and ull see ull only have to cut a lil bit of the sides and it will fit perfectly . there will be a gap where the exhuast should come out either u cut it to fit around the gap or just cover it with sumtin iono ill show u a picture later