TIL Loud ass pipes for safety. I never understood how someone can rationalize themselves out of waking up a whole neighborhood at night for the sake of their own transportation.
I have pipes that are pretty loud above ~4000 RPM, but pretty quiet underneath that. When I'm in a residential neighborhood I keep the revs low and shift early (it's less aggressive anyway, which is what you want if a kid or a dog could dart out in front of you). On the freeway and when nobody is around me I also keep it under 4000 RPM. But when I start feeling boxed in or I'm lane splitting I'll drop it down a gear to bump the volume of the pipes. You can see people recognize you're there, and that's the goal.
But yeah, those guys who blare their exhaust on bikes or cars are a-holes.
I ride. 9 years on a second hand GSXR1000 with pipes already swapped - loud. Now 5 years on an MT-09 with standard pipes - normal. City daily commuting the whole time. I won't bother with loud pipes again.
My pet theory: Unlike motorcycle riders, car drivers don't get the benefits of stereo positioning unless you are real close.
By the time people hear it, decide to look for it, place the location, react as required - you are usually on your way anyway.
Mind you, my home park is beside the driveway between two apartment blocks. I don't want to piss off 50 people I live close to, each time I come and go.
I can pinpoint everyone in my 90s Nissan, I cannot do the same in modern cars. Sound deadening has ruined that type of spatial awareness. That is just from tire noise as most cars are pretty quiet too.
I do often hear loud bikes lane splitting in time to give them room though, food for thought!