Boyesen

Boyesen 607 Power Reed

Boyesen Power Reeds use a patented dual-stage fiberglass design for more airflow, more air velocity and more overall power. This item fits the following applications: 2006 Polaris Trail Blazer 250, 2006 Kawasaki KDX200, 2005 Polaris Trail Blazer 250, 2005 Polaris Sportsman 400, 2005 Kawasaki KDX220R, 2005 Kawasaki KDX200, 2004 Polaris Trail Blazer 250, 2004 Polaris Sportsman 400, 2004 …

Learn more

88-98 HONDA CR250: Boyesen Dual Stage Power Reeds

Minor change give major H.P. improvements. Faster opening and closing. Greater low pressure (low-throttle) response. Greater velocity and flow area. Longer overall life. No engine damage if broken. Carbon pro has new carbon fiber reed for quicker …

Learn more

Boyesen Supercooler Kit – Black WPK-08AB

Cast aluminum construction. Increased coolant flow in all RPM ranges. Patented nautilus style impeller for Hydro dynamic efficiency.This item fits the following models:2006-2009 Honda TRX450ER Electric Start2006-2009 Honda …

Learn more

01-13 KAWASAKI KX85: Boyesen Dual Stage Power Reeds

Minor change give major H.P. improvements. Faster opening and closing. Greater low pressure (low-throttle) response. Greater velocity and flow area. Longer overall life. No engine damage if broken. Carbon pro has new carbon fiber reed for quicker …

Learn more

Boyesen 2-Stroke 15 Rad Valve for Kawasaki KX65 Suzuki RM65

Patented, One Piece, Cast Aluminum Reed Block System That Delivers Guaranteed Bolt on PerformanceSpecially Designed Reed Cage Now Comes With Carbon Fiber Pro Series ReedsMaintains Flow Velocity Through the Valve and Redirects Intake Charge for Even Distribution to Intake PortsPull a Gear Higher on Uphills; Instant Acceleration Makes Passing EffortlessBolts in Easily, No Modifications NecessaryCarb Boot, Carb Boot …

Learn more

Boyesen RAD-42D Rad Valve

Patented, one-piece, cast aluminum reed block system that delivers guaranteed bolt on performance. Carb boot, carb boot clamp and gasket provided. This item fits the following applications: 2010 KTM 300 XC-W, 2010 KTM 300 XC, 2010 KTM 250 XC-W, 2010 KTM 250 XC, 2010 KTM 250 SX, 2009 KTM 300 XC-W, 2009 KTM 300 XC, 2009 KTM 250 …

Learn more

Boyesen 610 Power Reed

Boyesen Power Reeds use a patented dual-stage fiberglass design for more airflow, more air velocity and more overall power. This item fits the following applications: 2000 Suzuki DS80, 1999 Suzuki DS80, 1998 Suzuki DS80, 1997 Suzuki DS80, 1996 Suzuki DS80, 1995 Suzuki DS80, 1994 Suzuki DS80, 1993 Suzuki DS80, 1992 Suzuki DS80, 1991 Suzuki DS80, 1990 Suzuki DS80, …

Learn more

Boyesen RAD-10E RAD Valve

The RAD valve’s seamless, one-piece, precision casting and continuous aero form surfaces ensure maximum flow velocities and instant, explosive movement of air particles the moment you turn the throttle. Integrated into the seamless interior chamber are 4-way aerodynamic directional dividers that distribute the angled charge evenly without flow loss. Optimized air intake system provides superior efficiency, peak horsepower …

Learn more