Here in NZ they have gotten tighter on noise regs, and other stuff.
You used to be able to get a wof with a rusty, noisy, smoky car.
Nowadays you have to have your spare wheel bolted down, & your washer bottle full !
They say all the increasing restrictions are to protect us.
I think it's more a matter of control. They want to control us. They secretly want us to ride quiet poofter bikes that are silent & boring.
They had special meetings about this. Then they paid the govt off to pass stupid laws.
The best solution: tinfoil hats. It prevents them controlling your mind & making your bike quiet.