ADDING HORSEPOWER
WITHOUT COMPROMISING RELIABILITY

K&N Lifetime air filters feature High-Flow Technology to help your car breathe easier, giving you the power you crave without the reliability headache often associated with high performance parts - and because K&N is a Lifetime filter, it never needs to be replaced.

Your car's engine is essentially a giant air pump, combusting a mixture of fuel and air with a carefully timed spark. The more air the engine has available, the more horsepower it can make.

An engine that breathes more easily will also show improvements in throttle response. Throttle response is measured by the amount of delay or hesitation that your car exhibits between when you press down on the gas pedal and when the engine responds by delivering power. Improvements in throttle response give you more "pep" in your car's acceleration.

ADDING HORSEPOWER WITHOUT WASTING MONEY

K&N Lifetime air filters feature High-Flow Technology to help your car breathe easier, giving you the power you crave without breaking the bank - and because K&N is a Lifetime filter, it never needs to be replaced.  The money you save not having to change disposable paper filters is working for you to buy horsepower.  

Stop throwing away money with disposable air filters. K&N Lifetime filters cost more initially, but never have to be replaced for the life of your car. This will save money in the long run compared to the cost of buying disposable replacement air filters.

If you are paying for labor by having your air filter serviced every 15,000 miles (as is often the case on many new cars) the savings are even greater. Now, not only are you saving on the cost of buying replacement disposable filters, you are also saving on the labor to have your old filter removed and the new one installed. Do the math. This is a significant savings over the life of you car and money that can better be put to use getting out on the road and enjoying life.

ADDING HORSEPOWER WHILE HELPING REDUCE WASTE                    Over 100 million disposable paper air filters end up in landfills or incinerators every year. K&N Lifetime air filters never need to be replaced.  K&N Lifetime filters feature High-Flow Technology to help your car breathe easier, giving you the power you crave while reducing waste.

K&N Lifetime Air Filters are made of cotton, a renewable resource (unlike the trees from which paper is made that take years to grow to maturity).

A clean air filter can also improve fuel mileage by up to 10%* over a clogged air filter. That 10% of fuel that is saved also helps to reduce vehicle emissions related pollution. 

 ADDING HORSEPOWER
WITHOUT IGNORING FUEL ECONOMY

The U.S. Government recommends replacing your car's dirty air filter for an improvement in fuel mileage of up to 10%*.

K&N Lifetime air filters feature High-Flow Technology to help your car breathe easier, giving you the power you crave while following these government fuel saving guidelines - and because K&N is a Lifetime filter, it never needs to be replaced.  Select the testimonials link at the top of this page and read what others have to say about K&N filters and their gas mileage improvement!

An engine that is getting the optimal amount of air flow is an efficient engine, and one that will show improvements in fuel mileage over an engine that is gasping for breath through a clogged air filter.

With fuel prices at record highs, isn't it nice to know that something as simple and inexpensive as changing your car's dirty air filter can improve mileage? Other mileage savings tips include making sure that your car's tires are properly inflated and removing unused accessory racks and heavy items from the car when not in use.

Stock Replacement Air Filters Designed to increase horsepower and acceleration while providing excellent filtration Million Mile Limited Warranty The World's Best Air Filter	K&N High Performance Intake Kits  Guaranteed Horsepower Million Mile Limited Warranty Replaces entire factory air intake system Easy to install

Universal, Custom & Racing Air Filters 1,000 sizes/shapes One Year Limited Warranty K&N's High Flow Cotton Media Provides Performance and Protection

Wrench-Off Oil Filters O/E Replacement Oil Filters for most cars, trucks, SUV's, motorcycles, & ATV's 1" or 17mm exposed nut designed for easy removal Heavy duty construction, high flow rates, & outstanding oil filtration

K&N has sold more than 20 million washable/reusable high flow air filters over the last 35 years.

K&N is the only air filter  used by the IndyCar® Series