reeds and spacers

[01mountanmax600]

Does anyone have experience on how much of a hp/throttle response gain I should expect with a set of boyesen power reeds and the spacer kit? for a 2001 mountain max 600. thanks for any input

 

[MrSled]

I woudnt bother...I would notch the stoppers....awesome throttle response and would guess about 2hp.