i have a 03 LS 430, and my dunlops came flatspotted and a bit noisy. For this i had the dealer replace them free of charge, now i have michelin's which i agree, are better handling, smoother, and mine seem quieter. BTW, Toyota of america also gave me 800 dollar credit towards snowtires (i live in NY) because i previously had a brand new ES which had tranny problems within 500 miles not something i would expect from lexus. That also turned me down because it was my first lexus, so i just spent the money on the LS, and that came with the bad dunlops. Just my luck i guess. Well anyway, go for a pair of michelins, those are nice