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If you have PSM there is a possibility that the different wheel diameter will confuse it and cause interesting things to happen. As a rule, the outside diameter of the wheel should not change, unless you do so for all four wheels. PSM uses rotation sensors in the wheels to determine whether they are slipping.
A 245/40/17 has a smaller outer diameter than a 255/40/17.
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2004 Boxster S Silver - FUNTOY
2002 Boxster Base Guardsy Red - FUNBOX
1987 Caterham Super 7 1700 Supersprint
2009 Mercedes Benz CLK 350 convertible
1941 Dodge Luxury Liner Coupe
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