K&N High-Flow Air Filters™ are designed to last for the life of your vehicle, and are protected by a Million-Mile Limited Warranty. With normal use, they can go up to 50,000 miles before a cleaning is needed (the larger conical filters included with K&N intake systems can go up to 100,000 miles between services).
How often should you replace K&N air filter?
K&N drop-in replacement High-Flow Air Filters™ typically require servicing once every 50,000 miles under normal highway driving conditions, and the larger filters included with K&N intake systems can go up to 100,000 miles before needing to be cleaned (under normal highway driving conditions).
How do I know when my K&N filter needs cleaning?
K&N recommends that you visually inspect your air filter once every 25,000 miles to determine if it needs to be cleaned. Cleaning your K&N Air Filter is not required if you can still see the wire screen on the entire air filter, regardless of how dirty it may appear.
Does K&N filter damage the engine?
K&N filters will not damage the engine internals but they can damage or at least coat the Mass Air Flow sensor if your car has one and most cars now do. The oil that the K&N filter is soaked in can separate and contaminate the wires of the MAF.
Is a K&N air filter worth it?
Fitting a K&N high flow air filter is the easiest, most cost-effective, and least technical way of increasing engine performance. K&N filters are worth it, they’re reusable and come with a 10 year or one million-mile warranty.
What happens if you don’t oil your K&N filter?
K&N filter elements have larger holes than stock air filters to allow more air through. The trade off is that without the oil, those larger holes would let in more dust type particles which, as anyone who knows engines will tell you, is not good for the engine.
Do K&N Filters let more dirt in?
Yes K&N air filters will let in a lot more dirt. Stock engines don’t consume enough air for the oem filter to be a restriction.
Can you over oil a K&N filter?
MAF Sensors and K&N Filters
If over-oiled, the oil can end up on the sensitive wires of the MAF and cause it to incorrectly measure air consumption. This can lead to a check engine light and to lean air/fuel mixtures.
Do I oil both sides of a K&N filter?
After you have cleaned BOTH sides with the cleaner and then rinsed it off, let it air dry and then spray the oil on BOTH sides. Let it air dry for 20 minutes and then recheck it for spots that may need more oil. It should be an even red on both sides. 1 of 11 found this helpful.
Does K&N air filter help gas mileage?
Yes, K&N air filters can increase your gas mileage. High-flow air filters feed clean air to your engine, helping it burn fuel more efficiently, which enables you to save money at the pump.
Why are K&N filters bad?
The rate of airflow affects engine performance, and the K&N filter abandons the paper setting and uses a more porous entry point, an oil-based foam material. But this has the obvious disadvantage of allowing some dirt and impurities in, which can cause long-term damage to the engine.
How much HP gain with K&N filter?
So if you can get cooler air into your engine, your car will be able to mix more fuel with that air, making more power. Combine that with the more air through the larger and less restrictive filter and intake tube and you can see up to a 10-15 horsepower increase.
Are K&N filters better than stock?
A K&N filter will also last much longer than a stock filter but that doesn’t mean much if your engine is taking a beating every time you drive out with your car. It is much cheaper and easier to replace an air filter rather than the entire engine block.
Why is K&N so expensive?
Simply put, a K&N unit costs a lot more than a basic paper drop-in filter because all that designing, engineering, manufacturing, and testing really does add up. … So unless that car is going up for sale anytime soon, it’s probably best to at least upgrade to a basic K&N drop-in unit.
Do K&N filters improve performance?
These filters are designed to boost horsepower and torque. That is because allowing more air into the engine tells the ECU to inject more fuel. This gives you a more complete and potent fuel burn. Test results have proven that these oiled cotton filters provide up to 50% more air.