Reviews of K&N air filter

I installed per instructions a K&N air filter to my 2000 VW Passat. Upon Driving the first 3 hours after installation my check engine light illuminated and a warning message appeared on my trip computer stating "Emissions Workshop!" VW stated that the error was a result of a faulty air mass sensor. It was determined by VW that Oil from the K&N filter had fouled the sensor and the sensor could not be cleaned. I now wish that I had not installed your product at all, because now at this point I am screwed. I am also out $579.41 for less than 3 hours of use of your product.

I've had a K&N drop in in my 99 1.8t since new, and I now have 70,000 miles on it. I've not had any problems with the MAF or anything else like that.

We also had a K&N filter in the car and the Mass Air Flow sensor failed about 14,000 miles later. The dealer did replace the MAF under warranty and did not suggest the failure was caused by the K&N.

I can tell a HUGE difference in proformance between my K&N and paper air filter. The K&N is a whole lot better. I want it back.