ECU swap - looking for 173 Module

[effone]

Hi, I'm looking for an ECU for my 1987 325is. Specifically, the 173 Module so that I can add the Mark D performance chip. I have the 153 module, but the chip will give me lesser performance on the 153 module.

[effone]

Actually, I've been told that 380 and 525 module is compatible too...so if anyone has either of the three they want to sell, I'm game