winter wheels

I have had my GT2 since February. It has the Michelin Pilot Sport 4 tires like I imagine most people have. I have the RWD car, which I bought because it's more fun...and damn the fact that I live in Colorado. Well, those PS4 tires turn to marbles when the road is cold and wet. (I had to commute...

A question for those who have the 18" FC04 rims on their cars - do the wheels require a different lug nut than the OEM nuts that came with the 19" factory rims? Or were you able to reuse the existing nuts? Just want to make sure the mating surface on the rim is compatible, as one of the quotes...