What exhaust headers are compatible?

[Tiesco]

the mufflers are almost cartoonish to me. I'll likely do away with them.

 

[TTManiac]

Those are cartoon like. Yuck! Head pipe section looks ok tho. I wouldn't be beyond chopping the ugly flare off the pipe and ripping any muffler packing or baffle out and giving it a try. You never know what might make a pleasant noise. In my experience most xs mufflers sound bad, weak, or too quiet. Best sounding outside of straight pipes I ever ran were the short baffled turn outs. Weren't loud enough for trouble in most places but still sounded like a bike!

 

[Tiesco]

Yeah I'd like the bike to sound nice after all this work I've been putting into it. Not that I'm complaining.