Quote:
Originally Posted by sting808
What type of tuning is required to calibrate speedo on M6 for 305s? The only speedo shop guy in the area retired and I'm not sure if another shop opened up. HPD went there, but not sure where they go now. Or except speed will be showing a few MPH off?
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the difference on the speedo is negligible. .9% difference when the speedo is indicating 60 mph, you will actually be going 59.5 mph, not worth do a calibration IMO.