But airflow tests on K&N products have shown superior airflow, even when the filters are at their 50,000-mile cleaning interval. This reduced maintenance and cost would make K&N Filters attractive even if they supplied the same level of airflow as a paper air filter.
K&N filters are worth it, they’re reusable and come with a 10 year or one million-mile warranty. I don’t mind being wrong, it happens to everyone.įitting a K&N high flow air filter is the easiest, most cost-effective, and least technical way of increasing engine performance. There is no significant difference between a K&N filter and an OEM paper filter, both let in dirt. – WILL USING A K&N® REPLACEMENT AIR FILTER VOID MY FACTORY WARRANTY. Because they do not have to be re-oiled, servicing DRYFLOW® air filters is typically a quick and easy process. K&N® High-Flow Air Filters™ are designed to last for the life of your vehicle. Test results have proven that these oiled cotton filters provide up to 50% more air. This gives you a more complete and potent fuel burn. That is because allowing more air into the engine tells the ECU to inject more fuel. These filters are designed to boost horsepower and torque. Are intakes illegal?Ĭold air intakes, for example, are illegal in Arizona, California, New York, Pennsylvania, and several other states if they don’t carry a CARB Executive Order (EO) number. Getting CARB approved is expensive AF and not a lot of companies can/want to spend the money on it. Hence all the “Race/Off-Road Use Only” disclaimers. K&N Blackhawk Induction Air Intake Systems. With a K&N performance air intake system, you get a guaranteed increase in horsepower and torque.īest 10 Cold Air Intakes For Your Car Table of contents. Switching to a K&N filter is an effortless method of increasing gas mileage. This helps increase fuel economy as well as offer your vehicle more gains in horsepower. Unlike your typical air filter, K&N air filters allow more air into your engine. However, it is not legal for sale or street use in California and the above states that have adopted California Emissions Standards under Section 177 of the Federal Clean Air Act of 1970. K&N Intake Kits – Are they street legal? This intake system is legal for street use in most states. California law prohibits the advertising, sales or installation of parts that modify vehicle emissions Jul 16, 2015. Why are K&N Filters illegal in California?Īir Resources Board investigators discovered that K&N Engineering, based in Riverside, Calif., sold performance parts that had not received exemptions from California’s emissions control system anti-tampering laws. of torque, or around 2.6 percent and 3.7 percent, respectively). 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. Turns Out High-Performance Air Filters Actually Do Give You More Power. Does a K&N air filter really make a difference? K&N washable and reusable air filters are handmade in the USA using only the finest materials. What are the cons of a cold air intake?.How much horsepower does K&N cold air intake add?.Do you spray oil on both sides of a K&N air filter?.Do you need a tune after cold air intake?.Can a cold air intake damage your engine?.Why are K&N Filters illegal in California?.Does a K&N air filter really make a difference?.