Boyesen Power Reed Dualstage Yamaha Yz250 97-98 Air Filter Accessories SE-R/SE-F 16-23

SE-R/SE-F 16-23

· Beta RR400 / RR450 2014

Gas Gas EC FSR 450 07-16 rear

350F FREE-RIDE 14-20

Optimal AirLine back ventilation

Boyesen Power Reed Dualstage Yamaha Yz250 97-98 Air Filter Accessories SE-R/SE-F 16-23One reed petal is NOT enough! Boyesen's revolutionary dual stage reed design delivers more usable power than stock. Stock single stage reeds operate most effectively within a relatively narrow RPM range and are limited because of the single stage design. Boyesen's one soft reed on top of one firm flow through reed gives you a wide range of intake control, plus increased intake velocity. Your original reeds can't possibly duplicate that performance.