Absolutely But if it’s too loud for a track day you’ll get grief from plod too when you’re on the road . . . and the one place you want the most power from the bike is a track day and you have to then stick a baffle in place which will take away some of the benefit of the full system you’ve just spent ££££ buying Simples
A full system is as much about saving weight as it is improving engine performance, but yeah, it’s a crappy situation that we can’t run our bikes in their best trim for trackdays.