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If I may give some insight of my recent change over to Michelin PSS (no change in the suspension components at all) ....
Almost 2 weeks and about 1000km on the clock since, overall tire performance is much better in terms of grip and cornering performance but the tradeoff comes in the form of elevated road noise, in particular on concrete pavement on highway, traveling at or above 120km/hr (as I agree to OP's finding). However, if the highway pavement is asphalt, then the road noise is not so bad at all, it would be almost the same as the GY LS2 RF. If those PSS tires are traveling on local traffic, then there is no noticeable elevated road noise, no matter concrete or asphalt pavement. I set those PSS tire pressure at 36 at all four corners.
btw, the tire shop did tell me those PSS will take anywhere between 500km - 1000km to break in.
Last edited by bobblehead; 08-07-2011 at 10:04 AM..
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