I need to get new tires as well. I've been calling around and from what I'm told, the Grabber UHPs are noisy as well. I'm thinking about going with the Bridgestone Dueler H/P Sport as I really don't need all season tires being in LA. Looked into the Michelin Latitudes, but I'm not sure if it's worth the extra $. I'm currently on the original Diamaris and according to the Tire Rack reviews, the Duelers are supposed to be quieter than the Diamaris.

Edit: Just looked on Tire Rack and the Grabber front tires have the same load rating as your Yokohamas. From what I was told, because this load rating is higher than OEM, there is more noise from the tires because the tire wall is thicker to handle the added load capacity. Not sure if that's accurate, but that's my understanding.

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