actually I was thinking about muffler change, just for upcoming season, somethin more gp style.
Got Akrapovic Ti headers, and while my thoughts was around muffler, I ask my self a question about exhaust diameter.
I was conficed that Akrap is most decent choice for 12, but for how long. I mean till when the 51mm diameter of header outlet is enough?
For stock bone motor with pc and filter is enough, but for higher capacity or higher compession ratio with ignition change, is this still good?
I know they use in WSBK from 60mm to 65mm conection diameter. How You fell about it?