Does somebody know the difference between the JDM 88-89 Civic SiR EF9 seats and the JDM 90-91 Civic SiR ones. Correct me if I'm wrong but the 88-89 come with black siding and the middle is ?????? and the 90 ones (cause they were no EF9 in 1991 I've heard) come with grey siding with a grey and red ligned middle? Is this right?