i was looking for akrapovic sound on a crf but my attention after watching your vid was (of course) on the 430! I didnt know that a motocross fan could own a ferrari too! Except for JS7...! Excellent!
Long shot, but just wondering if you remember the header pipe feeling a bit loose when cold. My Akro system seems a little loose when cold but tighter when hot. Just wondering if remember any play in the header pipe at all?