Am I reading this correctly? You are stating this heat exchanger by itself with an OEM intake manifold reduced intake temps by 47*F?
Do you have log proof of this?
To actually answer your question:
3.0 Supra all years/models
5x112
Front: 19x9.0 +32
Rear: 19x10 +40
2.0 Supra all years/models
5x112
Front: 18x9.0 +32
Rear: 18x10 +40