I have my stock wheels still that I will use when I race as soon as i get some tires. But I have raced 2 other SVT's with the 18s and the subs and haven't had a problem with them.

1998.5 SVT Contour silver frost Intake, Exhaust, 20% mirror all around, 18" ALT stanima wheels, Eibach's, B&M short throw, 9mm ford racing wires, SAFC II, oem carbonfiber hood, MSDS headers, Panasonic head unit and one alpine 10".