Review on 🚗 K&N Engine Air Filter: High Performance, Premium, Washable Replacement for 2010-2016 HONDA CR-Z (33-2459) by Todd Gill

Heavy duty, long life air filter. Does everything he says. Just a small problem when you first get this, the filter itself is a bit oily. I thought it wasn't a problem, but I found that there could be problems with the mass air flow sensor. Light oil can accumulate on the mass air flow meter and cause failure. Not that big of a problem once you know what's going on. Cleaning the sensors from oil is very simple and should be done periodically with a new filter. After the filter is broken, everything is fine and works perfectly. I also see my gas mileage increase another 5 mph.