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Speedo off by 5mph even with stock wheels/tires?

118 views 8 replies 6 participants last post by  luzer  
Dang that's a lot off. I am on 15s with 205/50 tires and my speedo is about perfect I think. But I haven't checked with maps.
 
Rim and tire size will throw off the speedometer.

The speedometer powered but the transmission gear in our cars and the OEM rim is 14" rims and 195/50/14 tires if I remember correctly.
The oem size is 195/60/14.