Rinehart has released their slip-ons for the 17 M8. You can hear the pipes on their video. Also these slip-ons will fit a head pipe at some later date.

https://www.facebook.com/Rinehart-Racing-75172818788/

 

They sound great, in my opinion. I'm wondering what changed with the M8 that made them have to modify the slipons, if it was the header size or the mounting. You'd think the old slipons would bolt on just the same way.