i was just wondering would supra calipers fit on the rx300 .i know its a dumb question. my buddy got a set of supra calipers laying around and he to lazy to install it...i want to take them lol cause im looking for a set of BBK ...

 

I just asked this forum the same question about LS400 calipers since they are 4-pot as well as the Supra ones. One thing that was mentioned was the rotor size, not the bracketing as custom bracketing can be made fairly easily. The rotor sizes on the Supra are larger than our 11.7" RX300 rotors so the fitment in that aspect will be off. Theoretically the calipers will "fit" our cars but it will require changing the the rotor as well as getting brackets to mount the new caliper.