Stock, that's it. Change the resistence values, but the box must be stock. Any evidence that the stock unit has been opened means it's no good.

A decent scan tool should be part of a Region's tool box. Although, having several Regions share one is ok, as long as there is no conflict in the race schedule. If the scanner shows the ECU to not be stock (or updated as per the mfg.), it's no good.

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MARRS #25 ITB Rabbit GTI (sold) | MARRS #25 HProd Rabbit
SCCA 279608