SP 1020998 BOYESEN Rad Valve RC2 Membranblock Karbon-Lamellen KTM/HVA passend fuer KTM 300 EXCSP 1020998 BOYESEN Rad Valve RC2 Membranblock Karbon Lamellen KTM HVA passend fuer KTM 300 EXC 2017 BOYESEN engineers create a new lineage of aerodynamic intake technology to increase peak horsepower through design innovation: Aerodynamic Surface Optimization, Model Specific Reed Petal Tensioning, Material Fuel Resistance, and Multi Stage Reed Timing. Together, these innovations create a new technological benchmark in intake performance. Each Boyesen