FMF P-CORE 4 YZ250F ’06-11 YZ450F ’06-09 WR450F ’07-10

FMF POWERCORE 4. CONSTRUCTED OF STAINLESS STEEL WITH A LIGHTWEIGHT ALLOY CAN. SPACE AGE INTERNAL PACKING FOR MAXIMUM PACKING LIFE. HI-FLO MODULAR END CAP. INTERNAL SHAPE OF CORE USES HI-FLO TECHNOLOGY. ENHANCED SONIC EVACUATION PROVIDES FOR HIGHER FLOW AND INCREASED POWER. INCLUDES REMOVABLE SPARK ARRESTORFMF POWERCORE 4 HEX. Overall increase in power and torque. Durable stainless steel and aluminum construction. Space Age internal packing material for maximum longevity. Internal shape of core uses Hi-Flo technology. Enhanced sonic evacuation provides for higher flow and increased power. Includes removable spark arrestor. Can be used with FMF or Stock OEM Header