Quote:
Originally Posted by CSBM5
Quote:
Originally Posted by omasou
I didn't do the math assumed Keith gave me the correct sizes?
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Those are 1 increment is size larger than stock not smaller. It will slightly increase actual speed for the same indicated value. If you haven't coded your car to indicate true speed, it will be showing (speed - 3.1 mph) anyway, so if anything it will indicate a tad closer to true speed.
On my E90 M3 I run the same sizes (stock sizes are same as M2: 245/35-19, 265/35-19), and even with the car coded for true speed, my GPS verified speed is spot on accurate. |
Ah forgot about speedo. The difference is usually negligible like you showed. I had thought he was talking about front to back and confusing the DSC.