FMF Powercore 4 Complete Exhaust System Kawasaki KFX 90

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.