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gomarlins3 · 08-01-2012, 07:19 PM

When my 986 was on the OEM 16" wheels and tires that came with the car, the speedometer read 5 MPH too fast. I switched to the OEM 17" wheels and tires that came on my wife's Cayman and my speedometer is right on now.

08-01-2012, 07:19 PM	#13
gomarlins3 Registered User Join Date: Jan 2012 Location: Kuna Idaho Posts: 236	When my 986 was on the OEM 16" wheels and tires that came with the car, the speedometer read 5 MPH too fast. I switched to the OEM 17" wheels and tires that came on my wife's Cayman and my speedometer is right on now.