I purchased a set of Hoosier tires proper sized 245 40 18 and 315 40 19 from Roger Krauss Racing with intermediate grooves cut in like the ones posted somewhere on the forum..that how I got the referral. They have 100 miles on them..paid 1500 for them.. 1200 plus 300 for groove cuts.. I'm nervous putting these on the street and do not track the car so I would like to sell them..anyone interested?