I have 18 inch S03's, and they have become very loud with 20,000 miles on them, I need a quiet...
#4
Those get bad when they wear out too. Try Dunlop SP9000's...
...not as sticky as S-03's, but probably the winner of the comfort tests. Those will probably be my next tire after my experiences with SP8000's, RE040's, AVS Sports, Rossos, Pilot Sports and S-03's.