I can’t load the article because of the captcha, but based on the comments I’m assuming it’s about loud motorbike exhausts.

It’s not just bike exhausts that are loud either. Every night I hear a nearly endless stream of modified cars with pop and bang tunes. There’s not even the supposed justification that it makes you safer in a car, it’s just people doing deliberately inconsiderate things with their vehicles. It’s inflicting annoyance and misery on people for no reason but clout, and we should have less tolerance for it in society generally. It’s also the same drivers who are racing through city centres. I don’t know if they’re just racking up loads of fines and not paying them, or if they’re using swapped plates, but either way, it needs to be enforced better.