I just called the shop.
They said that since my tires are thinner than my stock ones it will be a little rougher, and that the tires I have now aren't as good as my Toyo stock ones, and that if the vibrations or sounds get worse bring it in.
I guess I'll just get a cushion for my seat.
I just went from stock 07 15" rims to a set of 18".
I haven't lowered my car yet and is on stock suspension.
I noticed that the noise level is higher than when I was on the 15"'s.
Is this b/c of less rubber? I also notice that there is slightly more vibration...
I did use center caps... and they...