The first upgrade has to be tires and wheels. So it’s off with the old and on with some more serious rubber. Using the widest size allowed by the class rules, we’ve installed 255/40R17 Dunlop Direzza Sport Z1 Star Spec tires mounted on 17x9.0 ET48 TRMotorsports C3 wheels. This is a very aggressive custom fitment, which required some work to get to fit. The white chalk mark seen in the photos is to check for any tire interference with the bodywork of the car. It was worth the effort to make it fit, and boy it sure looks good! We can’t wait to see how well it works out on the test track.