I am on APR Stage 2, going on 2+ soon. My local APR tuner is doing my yearly Audi service. However, he recommended doing a service every 6 months because the car is modified. This will mainly be oil change and oil filter change every 6 months. Do you guys think this is really necessary, I regular check my oil levels and use performance oil anyways?? It seems that they just try to squeeze some more money out of me but I could be wrong... Edit: Car is MY12 and just over 10.000km. Just had the first service 6 months ago.