
Average Reviews:

(More customer reviews)I want to maintain my vehicles with the very best products. K&N filters are the best! When I was younger... I thought a filter was a filter and I bought Fram or some other inexpensive brand and I thought that was good enough. I'm older and I hope much wiser do to life's experiences and the extensive research I do on everything I purchase. In most cases... you get what you pay for. I have used K&N oil and air filters in my truck, car and motorcycle for many years and would't think of changing to something less. You get a quality, well built product and when I think of all the times I ruined filter removal tools... I really apreciate the nut that is welded on the bottom of the oil filter for easy removal in tight places.Protect your investments with K&N. If someone else changes your oil and air filters... buy K&N from Amazon and have your maintenance man install them! My 2004 Ford F-150, 5.4,Super Crew, gas milage increased nearly 3 miles per gallon on the highway after installation of the K&N Air Filter.
Please take the time to read this experience I had in order to help you increase your gas mileage on newer vehicles:
When I removed the original filter and installed the K&N air filter... my gas mileage improved nearly 3 miles per gallon.Then I had to disconnect my dead battery and install a new battery... I lost about 2 to 3 miles per gallon!Crazy Huh?Well, I discovered this information on a Blog that makes a lot of sense and I since discovered my owners manual varified this theory.The computer system monitors the amount of AIR that goes into the engine and the amount of Air coming out through the catalitic converter and adjusts the GAS flow according to a preset (predetermined) gas mileage setting by the manufacturer.When I installed the new K&N Filter, additional air flow was allowed, but the original settings for the amount of fuel remained the same because the computer keeps the original air flow recordings until the battery is disconnected.This equates to better gas mileage!The truck computer keeps the original settings for gas and air until the power (electric) to the truck computer is cut off.After the electric is re-established to the computer... it monitors the air flow for several miles at slow speed and highway speed and resets the amount of gas flow to correspond to the new air flow... in accordance to themanufacturers preset gas mileage goal.This is how I lost the gas mileage (when the battery died)that I had gained when the K&N filter was first installed.So... to correct this... I put the original air filter in the truck... disconnected the battery for at least 20 to 30 minutes to clear the computer and then reconnect the battery.Then I started the truck and drove at a low rate of speed for a few miles... then drove the truck on the highway for a few more miles.This allows the truck computer to reset the computerized gas/air flow settings from the air filter you now have in the vehicle.Then I replaced the original air filter with the K&N filter.Now the computer will keep the settings of the original air flow from the factory type air filter (until the battery goes dead or is disconnected again) and the additional air flow allowed by the K&N filter, once again, improved my gas mileage back to what I gained when I first installed the K&N filter! I gained back nearly 3 miles per gallon! The computer in my truck and car monitors my fuel mileage. This is how to fool the computer systems factory settings to improve gas milage and it will keep these settings until you disonnect the battery for some reason. I keep the original air filter on hand in case I need to disconnect the battery to change spark plugs or something and I need to fool the computer with the original air filter flow again! If your vehicle doesn't have a computer... then there are no computerized factory preset air and gas settings.Just put in the K&N Air Filter and your good to go. This particular K&N Filter 33-2346 is for my wife's new Azera but the results of improved gas mileage for the car is expected.I'll update later
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Product Description:
K&N's lifetime replacement air filters are Designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for virtually every vehicle on the road.
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