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Discussion Starter · #1 ·
I have a custom tuned ECM and have changed tire size. Can the speedo be adjusted at a local shop (not dealer) without disturbing the tune, or do I have to send the ECM back to the tuner to do it with EFILive?? :drink
 

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you will have to do it with efi live..

if you have a friend with it you can give him a 100 bucks for the vin license and you can do it that way
 

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Oh...... Squirrel!
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Discussion Starter · #4 ·
Somebody today mentioned using a "speed buffer" which would avoid having to mess with the ECM. Anyone know anything about this? Buying an EFI Live would have been easier, lol
 
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