E46Fanatics - View Single Post - ok its offical, when i installed the nr guages it mess up my speedo
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Old 04-21-2002, 01:17 PM   #7
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Join Date: Dec 1969
Location: NJ/NYC
Posts: 966
My Ride: 08MGT,12CLS63 Launch
Originally posted by Rdubb
Did you check your speedo before installing the gauges? I know my car is about 3 mph off just because the difference in tire size (going from stock to aftermarket). Find one of those online tire size calculator things that includes mph adjustment and put in your stock tire size compared to what you have now.

Just a theory...
well yeah i don't mind that, but if you look in my pic, the needle sits way below where its supposed to sit
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