Over here we have very few of the Butt Jewelry brigade with their straight pipes.
What we have instead is hordes of 50 & 125cc scooters with the baffles ripped out.
That's a really nasty sound, especially the 2 strokes.
We also have many 600-1000cc sports bikes running race "mufflers".
Many of those you can clearly hear as they accelerate up the nearest on-ramp which is only 1 and a half miles from my house.
When they do this at 6pm who cares?. At 2am they really p!$$ me off.
Now I have a 2 Bros on my C14 but I have the decency to keep the rpm and throttle opening low when others are asleep.
It's also nowhere near as loud as those race cans.
As for the "Saves Lives" bit, I do have to admit that I fitted the 2 Bros as I wanted to be able to let people know I was there whilst lanesplitting.
For that it works well as a blip of the throttle is far less "confrontational" than sounding the hooter.
Did it save my life?
Probably not, but it may well have saved me from dozy, cotton-wool wrapped, cellphone using, incompetent drivers pulling over into me.