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      07-25-2010, 07:31 PM   #19
ersin
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Drives: 17 YMB F80 M3
Join Date: Mar 2008
Location: Maryland

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Quote:
Originally Posted by aajami View Post
The difference in size is so small that the speedometer error is less than 1%. So at 80MPH, it'll read 79.3 -- pretty negligible.
The speedo already reads high, especially the faster you go. So, with the slower than stock reading you're actually getting closer to the true speed.

BTW, nice work. I'd go aftermarket myself, but I'm glad you got to do it OEM the way you wanted.


Cheers.
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