Just so you know the 88-89 civic and the 88-89 CRX are not even close to being the same. That also applys to the 90-91 civic and crx. I only know this because when I got my 89 Si I could only buy seats from the same year to fit.

You can almost fit 90-91 teg seats with only 3 bolts, but that is only on the 90-91 Civic.