This is to all the wheel and tire experts on this site. can i run 18x9.5 z06 rims without traction problems. and which tire size would help the most if problems occur. Basically i want the look of the 18 inch rim but if im gonna have to mod the car i might go with the 17 inch rims instead, or wait till i can afford the 18 inch rims and do modifications if needed. please help with the decision i thinki might go with rims as my christmas present to myself this year. oh if it matters i have a 02 z a4 3.23 with flopac,lt's and ory and still looking for a suitable catback, incase you were wondering my mods