These reusable K&N Filtercharger air filters outflow any other filter--up to 900 cfm--for power gains of up to 15 HP. They use a surgical cotton fabric soaked in oil as their tack barrier. Sandwiched between an aluminum screen wire, the holes in the cotton catch tumbling air and straighten it out. Since air moving in a straight line flows faster, the filter actually improves airflow. They can be covered by up to 1/4 in. of debris before air restriction makes cleaning necessary. The filters come pre-oiled, and many are available as a direct fit for your application.
A high-flow, washable filter that delivers the maximum amount of air possible into your engine while providing superior filtering
Multiple layers of cotton fabric sandwiched between pleated aluminum screen capture airborne dirt particles
Improves horsepower and torque
Emission legal in all 50 states, will not void manufacturer's warranty
Filters can be cleaned over and over, and are backed by a million mile limited warranty
This is the best upgrade you can do for the price. K&N filters are the best filters on the market. You will notice better performance right away. You might clean it 1 time a year and it will be the last filter you have to buy for your vehicle. I have 1 on my car, truck, boat, and motorcycle. I have been using them for years without a problem and they will stand behind their warranty. 1 Filter i had developed some rust on the chrome end cap after 2 years of service and they sent me a new one at no cost. You really want some bang for the buck go for the cold air kit. I was shocked at how the extra horse power was noticed and the look was perfect on my 2004 f150. I am sold on this product....more info