ok, my question is what are the differences in the body from the 88-89 and the 90-91 and can you change the body style's of the 88-89 to look like the 90-91?? Thanks so much.

 

is there anything specific that you want to change on the 88-89? usually you can put 90-91 parts on the 88-89, just sometimes you need ALL the 90-91 parts...

 

Yep

 

The front bumpers are different and I also think that the fenders are. But that might be hatch and CRX fenders being different.

 

also the front corner lights are different where 88-89 have the two screws on the side while 90-91 have then in front

 

http://www.crxsi.com/resources/diff_sec_gen.htm

 

Yes you can..but why waste ur money??? I have 90-91 corners on my 89 and all i had to do was use 90-91 healight brackets and 90-91 corners and the clips in the fender that hold the corner light on. I only did this cause my car was wrecked. bumpers will bolt right on as well as tailights and door trim will clip right on.