i bought the RX7 rotors and calipers for quite a high price, close to 500 bucks because it so rare to find really good conditioned ones.. had to use credit card first due to cash payment of my recent accident. it's currently at the machine shop along my 4 lug knuckles to make custom bracket and rotor PCD drilling. this is only for front... i've yet to hear of people upgrading the back though...
will update you guys on the progress of the brakes upgrade, it's currently going pretty slow coz the machine shop i sent to is busy...