yeah noise, i went to my 'exhaust guy' got him to put some quiet system on ghetto mounted it basically, got test done then went back to him to swap exhaust back on.. cost me like ~$200 all up including the test roughly i think.. still a pain in the ass with the time it takes to do it etc.
My bike is full reg, been pulled over at Neerim South, and at Lake Eildon. Didn't see any police at the Anglesea tracks over the weekend.
50% of like the not many times I ride dirt, but yeh they're definitely out and about on the weekends on their KTMs