not looking to pay a huge amount but if good seats its possible…
what did you buy dude?
dont worry about it 
anything from 89-91 will fit. 88 and under had pillar mounted seat belts and 89-91 have door mounted belts. For some reason they switched up the seat brackets when they did that change.
Those seats will be pricey anyway since they’re getting harder to find without the tear in them.
I have a pair, but the driver side has the typical tear in it with foam missing.
'88 Hf/Dx/Si & the '89 Hf all had pillar mounted belts.
'89 Dx/Si & all 90/91’s had door mounted belts.
With that said, easy rule of thumb. you will need to find seats that match your style of seatbelt in your car.
I have set of 90 si seat! the driver has a rip in it and the pass is clean. 35.00 b/o?
ive gott 91 seats in my car the passenger seat is in real good shape but the drives has the rip on the side closest to the door like they always get.
let me know if your interested and mabye ill take them out and get some new seats if its worth my while.