Aye, I have an ST205 charge cooler core that I may fit. My mk1 turbo also had one.
Celica's go FMIC and we go CC.
I have never looked under the bonnet of an ST205 since owning MR2's, but I remember some being Rev 1/2, like Project Binky.
I guess that was an ST185, though.
Actually, now that I think on, this engine came from Lee H, and it was originally in a GT4...
Funny thing about the ECU's. When I was repinning the Rev 2 loom on my car to Rev 3 ECU, The MR2 ECU had loads of pins for controlling the CC pump etc and from what I could see with the lid off, they were terminated.
Looking forward to getting mine on the dyno and seeing if I can run 23psi from the CT20B, like the USA lads do.
What's yours running?