Ok, complicated question.

Are the older generation's (88 and older) seat back (and bottom) interchangable with a 90 vert's? I am not so sure about the backs (coz the verts have headrest speakers), but howbout the bottoms? My seats are pretty fucked and I need to replace them...dang

 

They just need recovering or are they damaged?

You might try www.mazdasalvage.com , coparfinder.com , and thepartstrader.com

 

I went and bought some $49.99 seat covers. They fit great and look great. They are also damn comfortable. My leather is quite worn and really made the whole interior look bad, but the seat covers make it look almost new.

So yea.

 

The 1st gens and 2ed gens bolt pattern on the frames are the same.
I know the 2ed gens bottom is taller then 1st gens,the verts have
way different seats,you might try mazdaformance.com they have
genuine mazda covers , backs,bottoms,for verts,all gens..i installed
2ed gen seats in my first gen,,and i'm really glad i did,much better

 

Try this link, they have a bunch of seats both whole and pieces in the 'clearance' section. Go to the RX7 section

http://www.mazdaformance.com