Gt 550 higgspeed on board

[@dennisyoung4631]

That sputter as the throttle is opened reminds me of an early RM…. Stu’s did that.
Then it smoothed out, got sputtery again - just before it climbed on the pipe and tried to go into another dimension.

[@John-q1h3o]

Just a glorious sound!!

[@lestercorder5884]

Great sound, the popcorn popper ❤😊

[@AlanTweats]

That sounds rough. and where is the high speed. Should be well north of 120

[@simongilbert2704]

needs setting up , higgspeeds not suitable ,

[@blackhat400]

Yip, shes 4stroking, = rich at the bottom end,

[@glen6945]

ace

[@kawah2Machiv]

tu as peur d'ouvrir en grand ?

[@afonsoaguiar9889]

Where is the high speed?

[@bigdaddy12122]

*HIggspeed expansion chambers