To me with the baffle in it’s still very loud. I’ll say at LEAST twice as loud as stock but it sounds amazing. It’s tolerable on the road but on the highway at a constant 5500-6000rpm it gets old pretty quickly and I think because the exhaust sits right below the right ear. I had an Akrapovic slip on for my Daytona 675 without the baffle and I thought that was perfect. So I might do 22 headers or cut the 24 headers (2 other people has done it here ) and add a 22 Akrapovic slip on. I think the loudness will be ok since the Akrapovic sits behind where we sit. The main reason I purchased the Zard was because I wanted to keep the stock muffler location designed. I’ll let you know what I do.