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Nismo 300 km/h speedo not working


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Hi i bought a used nismo 300km/h speedo from the US anyway i put it in

the problem is that the speed shows only about half of what i'm actually doing

eg: if i'm going about 60k's and it only shows around 30k's. i was thinking it may have been calibrated to miles per hour seeing it was from the US. is it possible to get it fixed. any ideas :)

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Hi i bought a used nismo 300km/h speedo from the US anyway i put it in  

the problem is that the speed shows only about half of what i'm actually doing

eg: if i'm going about 60k's and it only shows around 30k's. i was thinking it may have been calibrated to miles per hour seeing it was from the US. is it possible to get it fixed. any ideas ;)

I HAVE THE SAME PROBLEM ,I BOUGHT ONE & WHEN I FITTED IT TO MY R33 GTS-T IT ONLY READS HALF WHAT I AM DOING?? I THINK THESE SPEEDOS NEED A SPECIAL SENDER AT THE GEARBOX END , ANYONE KNOW WHERE TO GET ONE????

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