The Team Canada YZ450Fs had a real neat titanium 96db Dubach exhaust system. The head pipe had a U shaped adder where FMF has the powerbomb. To me 96db is the right number. It's quiet enough (it did not hurt when the MXDN bikes went by) but still enough power. 94db starts to cut out too much HP. Anyway I hope Dubach plans to make this avail to public.