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The PowerCore 4 is designed to increase the horsepower
and torque throughout the entire power curve and give you a
noticeable power increase that is very usable and beneficial no
matter what your riding style or ability is. Space-age internal
packing for maximum packing life. High-flow modular end
cap. Internal core shape uses high-flow technology. Enhanced
sonic evacuation provides for higher flow and increased power.
Includes removable spark arrestor.
NOTE: This accessory is restricted to closed-course competition use.
WARNING: Cancer and Reproductive Harm 
