NOTE: *** The CRF150F, CRF230F/L/M, CRF250R'04-05, CRF250X, CRF450X'05-17 and CRF450R'05-08 versions are available for back order only - Do not order if you are not able to wait for restock to arrive ***
We developed the PowerCore4 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.
- Hi-Flo modular end cap.
- Internal shape of core uses Hi-Flo technology.
- Enhanced sonic evacuation provides for higher flow and increased power.