If you want an aftermarket Caliper, I've got a Rotora 330mm:
http://assaultech.com/rotora/rotora_.../i-278262.aspx
I've got many options for pads like the HPS (high performance street) or HP+ if you're hitting the track more often.
Those combined with a nice rotor like the powerslot or powerslot cryo rotors will make for a great street/ track setup.
PM me or give me a call if you have any other questions or would like to order!