I am using a 4 into 1 pipe I got with the bike. I think it's an old mac exhaust. Made an end cap work off a ATV and a piece of aluminum strap I had to finish it off. I made an inner baffle for it that...

Started this project a little while back so I will get you guys caught up on my build. Started with a 78 CB750K. Turning it into a café fighter with modern forks and a single shock. Here are a couple ...