it flat out sounds like a jet!! but it can be beat by a very modified Banshee.. pay close attention the LAG this thing has at the start!!! a 2-stroke doesn't have this! and it will weigh half as much.. the hyabusa Banshee cannot beat a twin on NOS or a triple 2 stroke.. only thing you loose is braggin rights to having over 500 ponnies... the 2 strokers are only in the 200 - 240 category!!! BUT they can beat the Hyabusa by a full sec. up a very long and steep drag hill.. YES eventually the 4-stroke 500+HP Hyabusa will catch up if you are racing the 1/2 mile uphill.. in the real world where it counts the crankenstein 2-stroke twin on NOS or the triple with out will win.. it is cool to see how far the 4 strokes are comming along.. they are fantastic!!! and are the best to ride.. However I can't help feel sad and angry to see the 2 strokes becomming prehistoric!!! They will alway's rule the hill in my book! BUT!!! I am no drag racer!!! no NOS! no Turbo...No nothing.. just me, my wife, and our 3 boy's having simple fun.. that is what I am about... + I love to make things run better... TO A POINT!