4 Used TOYO RA-1 225-50-16. Bought these used for almost 500$$, i only used them for 1 lapping day, did about 15 laps! Good for at least 1 or 2 more seasons (depending how you drive). The thread looks low, but new there isn't much more, besides the more used they get..the more traction! YOu can see them new at:
http://www.toyo.com/docs/tires/tires.asp?lpid=18968&name=Proxes RA-1™&category=sport
Im asking 350$
http://www.toyo.com/docs/tires/tires.asp?lpid=18968&name=Proxes RA-1™&category=sport
Im asking 350$