Oh it definitely depends where you live. Here in San Diego, it happens all the time. I love seeing my friends cry when they tell me that they got pulled over for their exhaust again. I remember my friend and I pulled out from his neighborhood in Spring Valley and right when we got on the main road going towards the freeway, the lights came on and the siren was screaming. He was sporting the tanabe racing medallion we installed the week earlier. Cop said it was too loud. Before he went to court, he put on the silencer and then got it tested afterwards. The things we have to live with to be legal here in S. Cali.