Morning, I had a 307 feline a few years ago and had a hankering for another. So I bought one.... The exhaust is a bit of a mix of parts and too loud, so I bought a stainless 307cc one second hand. I've looked at the part numbers online and the back box is different (looks a tad longer and the entry is slightly different. Has anyone tried fitting a 307cc exhaust to a 307 feline? If so, does it need much tweeking? Thanks in advance,