WSM Piston Assembly 50-520-5-655 Universal Spark Arrestor Silencer The PowerCore 4 SA system's

The PowerCore 4 SA system's strategic ports allow the sonics to evacuate more effectively with the computer-designed Performance Flow end cap

0 offers dead-on clutch engagement every time and allows riders to take off and stop in gear without using clutch lever

rumbling exhaust note that won't have the neighbors up in arms

elbows and shoulder) are constructed from an injected polymer performance blend for optimized flexibility and excellent weight saving properties

removable silencing insert Hand-made

WSM Piston Assembly 50-520-5-655 Universal Spark Arrestor Silencer The PowerCore 4 SA system'sCoated with MOS2 for high performance and heat absorption Ported to match WSM Banshee sleeves Fit bores from 64mm to 70. 5mm Piston pin is 5mm higher on long rod pistons to accommodate long rod Made in Germany