Since this thread has gone a little off track I'll continue with that course. I've always felt the argument that a loud pipe offers a level of safey a bunch of hooey. There's nothing safe about a driver of a car being startled by an extremely loud foreign sound, the first thing that is done is eyes go off the road to scan the environment to figure out where and what is causing the noise, at the same time it's reflex to get the foot on the brake just in case the noise is the beginniong of a catastrophic failure of your vehicle. As said, a driver being startled erodes a level of safety not add to it.
Bing Bing Bing you get a prize.
I was driving home one day with one of my kids who was about 6-7 at the time and sleeping in a car seat on the drivers side of the truck. A motorcycle with loud pipes was behind us. I was doing the speed limit of 55 which was not fast enough for him. He passed us, down shifted right beside me and scared the scat out of my daughter. He had loud pipes which amplified the noise.
He was lucky I did not kill him. A loud noise like that can easily startle a driver and cause them to pull left as the look to see what is happening. At which point he would have died of I had pulled left. We were driving over a causeway over a lake. If he was lucky he would have ping ponged between the guard rails. More likey he would have gone OVER the guard rails and landed on rip rap which may or may not have kept him from going into the lake. A helmet would have been irrelevant.
He was lucky I don't startle easy. But he scared my kids which made me a bit mad. We were both lucky that the light a mile ahead was green when he got there and red when I did. We were going to have a chat about his pipes.
That a..... has turned my kid against motorcycles. Kiddo HATES them to this day and says so to me from time to time when we see one.
Later,
Dan