I put a BMC DIA into my Bora 4Motion the other week. I have been watching my fuel use and it seems about the same. Others who have added a POD filter seem to report improved economy - maybe it is because I haven't reset my ECU? Is there advantages to a having the ECU reset for naturally aspirated engine? And if I need to do this can it be done by anyone who has access to VAGCOM or do you need to see a specialist?
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