Lunar76

Does anyone have after market wheels on their Sc430? If you do, what kind of wheels do you have and does it make the ride any better? I am looking for new wheels hoping that it will enhance the ride quality of my sc430

So are you saying that if I put on 18" aftermarket wheels and new michelin tires I would still feel the rumble? Unless there is something wrong with the suspension I doubt it. I think the lexus wheels and tires they supplied with most sc430 are crap. Does anyone have aftermarket wheels on their sc430? As far as the speakers go my bass is on 0 and it still sounds bad. i am definitely gonna complain to the dealers.

Does anyone notice a slight rumble under the car while they are driving on the highway or just down a straight line? I have been feeling this vibration/rumble since the day I bought my car last october. When I spoke to lexus about they said it was the run flat tires, and they agreed to change it to for the dunlops. Even with the dunlop tires the problem hasnt gone away. The other frustrating thing about my car is the sound system. When there is base, a high pitched vibrating noise emenates from the wooden panels on the door. Really annoying. What happened to Lexus quality?