u/That_Slow_Civic2

I have a 2026 ninja 500 and have an LV corsa slip on currently, ive been thinking about buying the LV headers but the bike is already super loud as is. But with the size of the stock muffler it had me thinking that it was 95% of the noise reduction and the cat might only be like 5%. So how much difference do headers really make when you already have a slip on? Like is it just a little volume and better tone or does it make a huge difference in volume? And it's just hard to judge volume off YouTube videos. Thanks for the help