Kuryakyn Crankcase BootHoseTube Kit - Harley Davidson XL 91-06 Evolution Big Twin 93-99 - 8999
Maximum efficiency in crankcase ventilation is important for engine performance and engine gasket longevity. This kit is a must when installing a Hypercharger on a 9106 XL or 9399 Evolution Big Twin.Note: 8560 and 8561 are for use only with Hyperchargers and the necessary adapters for those applications.