- 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 seamless inner chamber are 4-way aerodynamic directional dividers that distribute the angled charge evenly without flow loss
- Each Boyesen rad valve is unique, tailor made to that model, year and displacement
- 1-piece aluminum casting; no manifolds to trim or plastic pieces to insert
- Boyesen Pro Series rad reeds included
Patented, one-piece. Carb boot, carb boot clamp and gasket provided. This item fits the following applications: 2008-2011 Polaris Sportsman 400 HO, 2001-2005 Polaris Sportsman 400, 2003 Polaris Trail Blazer 400, 2000-2002 Polaris Scrambler 400 2x4, 1995-2002 Polaris Scrambler 400 4x4, 2002 Polaris Xplorer 400L, 1995-2001 Polaris Xplorer 400 4x4, 1994-1999 Polaris Sport 400L, 1996-1997 Polaris Xpress 400L, 1993-1996 Polaris Sportsman 400 4x4, 1994-1995 Polaris 400L 2x4, 1994 Polaris 400L 4x4.
