BOYESEN MOTORCYCLE POWER REED (694) REED VALVE PETALS SPX LOCKING GAS CAP (AT-07559)

SPX LOCKING GAS CAP (AT-07559)

Hook/Loop Universal Fit

Valve Head Diameter: 29

Materials of 0

Straightline Performances Yamaha Viper/Arctic Cat 7000 series header is the first full production header proven to perform on the dyno

BOYESEN MOTORCYCLE POWER REED (694) REED VALVE PETALS SPX LOCKING GAS CAP (AT-07559)BOYESEN MOTORCYCLE POWER REED Boyesens patented dual stage design incorporates a specially shaped top reed and a ported bottom reed. The top reed is lightweight and resilient for crisp throttle response at partial throttle or low RPMs. The stiffer, bottom reed is ported to provide maximum flow and horsepower at higher RPMs. More valves equals more power More Air Flow. The dual stage design allows you to replace your stock reed stop with a Rev Plate