I just bought an 89 rx7..obviously, with a 13b non turbo, bought it with 134047kms, 5spd, no complaints about the car so far, needs a quick exhause weld, and a buff to the paint but other than that, decent shape, only concern is the CPU2, I cannot find one of these anywhere?
does anyone actually know the part number? how much they are? or what I should say I am looking for, and if they even make these anymore?
Most ppl seem clueless as to what I am talking about.

Ideas would be great, been on here for a while, browsing as a guest, decided to finally join.