I have a barely used 13b non-turbo mazdatrix race pressure plate and heavy duty street/strip clutch. It held 340rwhp ,less than 1500 miles looks good. looking to get $175 shipped, I Have pay-pal ....Part #12621 for the race pressure plate and part #12510 for the disc. That is 83-92 non-turbo 225mm....e-mail at dlesky@cfl.rr.com thanks for looking...