Tassinari V-FORCE REED VALVE V2R131 fits 1994 Polaris 400l / 1995-2002 Polaris Scrambler 400 / 1994-1999 Polaris SPORT 400l / 2008-2014 Polaris Sportsman 400 / 1997 Polaris Sportsman 400l / 2003 Polaris Trail Blazer 400

THE VFORCE4 REED VALVE SYSTEMThe all-new VForce4 is built upon the solid foundation that has made the VForce3 such a success for the last 10 years. While the VForce3 has been continually refined over the years, this is a complete redesign of the entire system. While the most obvious change on the all-new VForce4 is certainly the full-length reed stops, let's take a look at some of the other significant changes as well.• All-new reed petal resin system, carbon fiber and lay-up• Pre-curved reed petal ensures better seal at tip• Wider reed cage for maximum airflow• Combined reed tip area increased by 10.5% resulting in increased total air flow• Airfoil shape added to cage tip to increase air velocity from outer ports• Long reed stops added to progressively slow petal tip velocity, for increased petal durability• Reduced frontal area of central wing by 15.6% combined with a more aerodynamic shape