Boyesen’s advanced dual-stage design utilizes a highly responsive, flexible reed which is placed on top of a stiffer, ported reed for superior performance throughout the entire powerband. The specially shaped top reed is lightweight and resilient for crisp throttle or low R.P.M.’s. The stiffer, bottom reeds are ported to provide your engine with maximum flow and horsepower at higher R.P.M.’s. Easy starting and smoother idling for those no wake zones; Instantaneous acceleration allowing you to carve through the waves; Throttle response that delivers performance with a snap of the throttle; Crisper midrange to pull that extra boat length; Improved engine efficiency providing a broader, smoother powerband; Increased fuel economy; Longer reed life-Boyesen Power Reeds outlast all other aftermarket reeds; Performance that delivers a more satisfying ride.