If you're objective is to squeeze every last 1/2 HP out of your engine because you're racing, and you rebuild your engine every three months (or three races, whichever comes first ), a K&N may be for you. Microscopic, electronic and chemical testing revealed that none of the 77 Will a K&N filter cause my vehicle’s mass air sensor to fail? We are so confident in our ability to resolve these situations and help a consumer fight back that we offer our Consumer Protection Pledge.Īs a result of our standing up for consumer rights and providing assistance to resolve a disagreement, we have had 77 actual sensors sent to us by dealerships who claimed our product had caused them to fail. For more information on how we educate and persuade the service provider to reconsider their position, see Mass Air Flow Sensor Information & Testing.
#Does k and n filters work full#
We investigate the situation thoroughly and take full responsibility for resolving the issue. We take each complaint very seriously and see it as an opportunity to stop a consumer from being taken advantage of.
Out of the millions of air filters we sell, we only receive a handful of consumer complaints each month that a dealership or service provider has blamed a vehicle sensor repair on our product. We all use oil for the same reason, it helps in the filtration efficiency of an air filter. There are also major brands of disposable air filters that are treated with oil. It is even more ridiculous because some car manufacturers use and sell air filters treated with oil on a regular basis. It is ridiculous, because no dealership or service provider has ever been able to provide us with evidence to support this “myth,” and in fact, our investigations have revealed that even authorized dealerships are simply speculating and do not have the test equipment necessary to know whether the sensor has failed or why. Once the oil is properly and evenly absorbed through the cotton, no oil will come off, even under extreme engine conditions. It is impossible because we know that the oil treatment on our cotton is very small (usually less than 2 ounces). No, it is both impossible and ridiculous. Will a K&N filter cause my vehicle’s mass air sensor to fail? Question - has this actually happened to anyone, or is this just a theory that has been perpetuated and is now accepted as fact (like global warming)? It produced a 2-3 percent improvement in acceleration time versus the stock unit.I have heard from some on this site that K&N air filters will ruin your MAF Sensor. Like on the dyno, he sees incremental increases, with the K&N filter coming out on top. of torque, or around 2.6 percent and 3.7 percent, respectively).įenske also tests out the filters in a real-world environment, testing acceleration times between the four candidates. He finds that on the dyno, the aftermarket filters do in fact make more than the OEM unit, with the most gains produced by the K&N filter (around four horsepower and five lb.-ft. But not much.įenske put together a dyno test using his personal Subaru Crosstrek, comparing four different air filters: The dirty OEM item already the car, a new OEM filter, a cheaper aftermarket non-performance filter sold by CarQuest, and a high-flow performance filter made by K&N. Well, Jason Fenske of Engineering Explained put these claims to the test, and it turns out that yes, high-performance air filters do actually yield more power. But being so cheap and easy to install, it's hard to believe these filters actually produce any observable gains. If you've ever been to an auto parts store, you've probably seen air filter boxes that claim extra power and more torque over the factory filter.