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So installing the ZL1 1LE wheels and tires looks like it's going to make the speedometer off by about 4 percent. So for every 100 miles you drive, your car logs 104 miles.
I've been reading and it looks like many folks have asked dealerships to re-calibrate for different tire sizes and have been denied. Obviously HP Tuners can make the change, but most people probably won't want to void their warranty for a speedometer correction.
I know about the Magnuson Moss Warranty Act, but does anybody know of any official statements from GM addressing speedometer calibration?
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