M box ecu in a car with an H model now?
#1
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Hi - just purchased a used 2001 S4 (Nogaro) and I'm thinking of a chip upgrade. I believe from the build/service date that this is an H box ecu (have not had the chance to look yet). However, I have access to an M box ecu - can I use this unit/later model ECU in my car for the chip upgrade?
Thanks
Thanks