The R&D Spark Power Filter Kit will add a noticeable increase in throttle response and overall power by opening up and allowing more air flow over the super restrictive O.E.M. air plenum box. The O.E.M. filters are known to be over restrictive causing sluggish low-end power. The R&D Filter Kit incorporates and adds needed intake track length proven to increase overall torque and power on 4 stroke engines. The R&D Filter is easy to install in 30 minutes, adds peak rpm’s and power with a great sound tone. The R&D Air Filter element is lifetime serviceable over the restrictive non serviceable stock filter.