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Re: Vw TDI how do I tell if its been tuned?
Posted to Technical Theory Forum on 11/26/2015

Hi Jason,

I believe the best way to tell would be for you identify the most likely tuning software used. I know that for Nissan/Infiniti it is primarily UPREV software. If the car has been tuned, then most likely a serial key will live on the ECU. If you ho... Login to read more.