I recently tried to search to find out if a two bros carbon slip on would work with a yoshi header (designed to be used as a full system) and could not find any results. I ended up just going for it anyway and bought the header from a private seller part out. Just thought I would let you guys know that it DOES in fact work together, quite nicely too I might add. As far as I'm concerned it work with any slip on. Hope this can be of some help!