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I just put a set of Yoko. H4's on my '01 Altima. BTW, not that I've owned many "good" tires in my life, but these are the best I've had yet. Anyhow, I got 205/40-16's and of course that geared my car down by about 10%. That's a good thing except now my speedometer reading is off. Since they're not a traditional cable driven type can they be adjusted through the ECU for the difference? My local Nissan shop said simply, "We don't know."

Thanks in advance.
 

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i heard it costs 100s of dollars to do it, there is a calculator on this site, to measure how many miles ur speedo is off, search for it, i dont think u shoudl waste ur money recalibrating ur speedo, thats if its too much money
 

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Here you go MiniMaxima...

This is the site that calculates the speedo error for you. On the right side you enter the OEM size of the tyre(what was originally on the car-go here if you cannot remember that http://www.nissannews.com/?http://www.nissannews.com/nissan/2000vehicles/altima/index.shtml ) and on the right you enter the new size for the tyre. Under the image in small writing, you'll see the speedo error. You can toggle between mph(standard) and kph(metric).
Good luck, Horatio.

http://www.miata.net/garage/tirecalc.html
 
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