Review on 🏍️ K&N Motorcycle Oil Filter KN-401 - High Performance, Synthetic/Conventional Oil Compatible, Premium Quality - Fits Kawasaki Vehicles (Select Models), Color: Black by Chad Judex

Excellent oil filter, good quality. K&N's have a bad reputation for making mistakes, but most of them are bolted on with a safety wire nut on the end that's prone to breaking due to poor welding. There are also reports of O-rings failing with their thread types, but about half of those reports are likely due to installation errors. This is an internal filter and the o-ring is not supplied so there is very little room for error.