ive got a pair of michelin pilot sports with a tread depth of about 5/6, im pretty sure its a radial tire, doesnt look directional to me. either way they will last you a session or two before the threads show. $25.

245/45/17.

i can also grab a whole set of kumho ecstas in 16" with decent tread if you want but theyre pretty deep in the tire hole so if you want them it will be about $50. im working tomorrow so if you want them text me with you TR sn and ill get them for you. you HAVE to buy them though.