Review on 🔧 K&N Engine Air Filter KA-1709: High Performance, Premium Powersport Air Filter for 2009-2018 KAWASAKI by Justin Butler

K&N has to work on the quality of its products. Installation was tricky because he doesn't want to sit in the grooves of the airbox. It fits, but I asked if it was properly sealed. The reason I finally took it off was because I saw oil dripping out of my airbox. I thought it was the crankcase ventilation and the filter wasn't closing properly, but when I took it out it was full of red oil. My engine oil is not red. That was because there was so much oil in the filter that it was dripping into the airbox. I managed to get red oil on both sides of my Vulcan's intake system. The oil had leaked out of the air can and splattered onto the sides of the bike.