BOYESEN POWER REEDS PAIR YAMAHA BLASTER YFS200 ALL YEARS 630 BOMBARDIER-SKI-DOO-EXPEDITION-SPORT-550-FAN-2005 SCM420 chromoly steel alloy for

SCM420 chromoly steel alloy for front sprockets

2019 BMW F750GS

1995 Polaris Supersport

2002 Arctic Cat ZR 440 Sno Pro

BOYESEN POWER REEDS PAIR YAMAHA BLASTER YFS200 ALL YEARS 630 BOMBARDIER-SKI-DOO-EXPEDITION-SPORT-550-FAN-2005 SCM420 chromoly steel alloy forBoyesens revolutionary dual stage reed design delivers more usable power than stock. Your original one stage reed operates most effectively only within a narrow RPM range. Boyesens 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 cant possibly duplicate that performance. Dual stage reeds Minor change gives major H. P. improvements Faster opening and closing