My son, his buddy, and I did a few loops at Gorman yesterday, around 35 miles. When we were leaving, a couple of guys came up and asked us to complete a survey. They asked us a few general questions, then, zoomed in on the sound issue. They said, "During the last year, have you noticed the OHV vehicle sounds getting Louder, quieter, about the same". Anyway, he asked this question for every type of off-read vehicle, ATV, Dirtbike, 4 wheeler, etc... . I kind of "got it" and told him I noticed every vehicle was alot quieter for the last year. At the end, he told me the Sheriffs were doing sound checks up the road and they cited 3 people. Gorman is in the middle of no-where, so, if they are checking there, they will check everywhere. My son and I have white bros. e-series pipes, I have one silent core insert, looks like I better go get another one for his YZ. Look out guys, big brother is listening!!