You could try dropping your tire pressure if that's 32 cold. Seems a bit high. Pirelli's can be a bit noisy with high pressure. Also wagons tend to amplify noise more than sedans..

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Jeff Lawrence
1989 300e
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.