K&N AIRCRAFT INDUCTION AIR FILTERS OFFER YOU:

1. 2-4% Increase In Horsepower
2. 50% More Filtered Airflow
3. Filter Elements That Can Be Washed Up To 25 Times
4. FAA/PMA Approval
5. Fuel Savings
6. Direct Replacement For Foam Or Paper Filters

K&N AIR FILTERS ALLOW YOUR ENGINE TO BREATH

An aircraft piston engine's power output is proportional to the volume of air it can ingest at a given RPM. The most minute restriction in the air induction system will cause an engine's optimum power output to drop. Today's aircraft engines, with restrictive air filters, run like a marathon runner breathing through a straw.

How Your Engine Operates

Aircraft piston engines go through four "strokes" during the combustion process: (1) Air intake, (2) Compression, (3) Combustion, and (4) Exhaust. During the air intake stroke, the piston moves down the cylinder, sucking in a new air/fuel mixture through the open intake valve. The intake valve closes and the piston moves back up the cylinder, compressing the air/fuel mixture. At that point, a spark from the spark plug ignites and explodes the compressed mixture. The explosion forces the piston back down the cylinder, producing the necessary power to turn the propeller. Next, the exhaust valve opens as the piston pushes out most of the spent air/fuel mixture and the cycle starts all over. The intake stroke of air/fuel mixture determines how much power the engine will generate. Any restriction in the air intake will change the air/fuel mixture, wasting fuel and reducing engine power.

Fifty Percent More Air Flow

K&N air filters consist of a reusable filter element with multiple layers of oil impregnated surgical cotton fabric, sandwiched between two sheets of pleated epoxy-coated aluminum wire mesh. The element is held in place by soft molded rubber surfaces, edges and end caps. This K&N air filter design allows about 50% more air to pass than paper, and almost 60% more than foam. This translates into 2 to 4 percent more horsepower and improved fuel economy. Results may vary depending on how much your existing air induction system restricts air flow.

FAA/PMA Approved

Performance filters by K&N are now FAA/PMA approved for many general aviation aircraft as direct replacements for existing induction air filters. Each filter can be washed and reused up to 25 times before it is considered no longer servicable. The filter must be cleaned every 100 hours or sooner in dusty conditions, which means it can last up to 2500 hours. For aircraft flying less than 100 hours per year, the filter must be replaced every five years or sooner, depending on aircraft storage conditions.

FREQUENTLY ASKED K&N AIR FILTER QUESTIONS (FAQ)

1. Q. How long have these air filters been around?
   A. K&N Engineering, Inc. developed the filters over 40 years ago for high performance race car engines. They have been flying on Van RV series and Pitts for over 12 Years and are FAA approved for Lancair 300/400 Aircraft.
2. Q. Do I need to modify my aircraft to install this filter?
   A. No. The filters are FAA/PMA approved to directly replace the OEM filters.
3. Q. How do K&N filters differ from other air filters?
   A. Other air filters are made from synthetic fiber, either foam or paper as opposed to K&N's 4-ply cotton woven surgical gauze material. Only K&N reuseable filters provide up to 50% increase in airflow.
4. Q. Will I see an increase in horsepower?
   A. Yes. Typically a 2 to 4 percent increase in horsepower. The results may vary depending on the restrictions in the existing aircraft air intake system.
5. Q. Can the engine get too much airflow?
   A. No. An engine can only take in a fixed volume of air depending on the engine size. The more restriction in the engine intake system (air filters, air box and tubing), the greater the potential for power loss.
6. Q. How do I know when to clean the filter?
   A. The filter must be cleaned every 100 hours or sooner in dusty conditions. The K&N CP-99-5050 Recharger Kit includes cleaner and oil, which must be used during filter cleaning. Any other cleaner or oil will destroy the filter. When reinstalling filter, CP-99-0704 sealing grease should be used to create a tight fit around sealing surfaces. Also, where applicable, sealing gaskets should be replaced at every cleaning.
7. Q. How many times can I reclean the filters?
   A. K&N filters can be cleaned up to 25 times before they are considered no longer serviceable. If fitted to an aircraft flying less than 100 hours per year, the filter must be replaced every five years or sooner depending on aircraft storage conditions.

K&N AIR FILTER CLEANING INSTRUCTIONS

1. Pre-Cleaning. Tap the element to dislodge any loose dirt, then gently brush with a soft bristle brush. (Note: If complete cleaning is not practical at this time, re-oil the element and re-install in the aircraft.)
2. Spray on Cleaner. Spray K&N air filter cleaner liberally onto the entire element and let loak for 10 minutes.
3. Cleaning Hints. Use only K&N air filter cleaner. NO gasoline cleaning. NO steam cleaning. NO caustic cleaning solution. NO strong detergents. NO high pressure car wash. NO parts cleaning solvents. Any of these NO's can cause harm to the gauze filter media, plus shrink and harden the rubber end caps.
4. Rinse Off. Rense off the element with low water pressure, tape water is OK. Always flush from the clean side to dirty side. This removes the dirt and does not drive it into the filter.
5. Drying Hints. Always dry naturally. After rinsing, shake off all excess water and let the element dry naturally. NO NOT use compressed air. DO NOT use open flame. NO NOT use heat dryers. Excess heat will shrink the cotton filter media. Compressed air will blow holes in the element.
6. Squeeze Bottle Oiling.After cleaning air filter, always re-oil before using. Squeeze K&N air filter oil down into the bottom and along each pleat in only one pass per pleat. Let oil wick into cotton for 20 minutes. Re-oil any white spots still showing.
7. Oiling Hints.Never use a K&N air filter without oiling (The filter will not stop the dirt without the oil). Use only K&N formulated air filter oil. K&N air filter oil is a compound of mineral oil blended with special polymers to form a very efficient tack barrier. Red dye is added to show just where you have applied the oil. Eventually the red color will fade, but the oil will remain and filter the air. NEVER USE Automatic Transmission Fluid. NEVER USE Motor Oil. NEVER USE Diesel Fuel. NEVER USE WD-40, LPS, or other light weight oils.
8. Oiling Hints.Never use a K&N air filter without oiling (The filter will not stop the dirt without the oil). Use only K&N formulated air filter oil. K&N air filter oil is a compound of mineral oil blended with special polymers to form a very efficient tack barrier. Red dye is added to show just where you have applied the oil. Eventually the red color will fade, but the oil will remain and filter the air. NEVER USE Automatic Transmission Fluid. NEVER USE Motor Oil. NEVER USE Diesel Fuel. NEVER USE WD-40, LPS, or other light weight oils.
9. Reinstall Filter.Re-install your K&N air filter element with proper care. Make sure the element seats properly in the filter case. Install the cover, making sure it is in the right position. Tighten all the nuts, bolts, screws or clips to factory specifications. For extra protection, use K&N CP-99-0704 sealing grease on the rubber ends of the filter element.
10. Affix "Do Not Discard" Sticker. Affix the "Do Not Discard" sticker to the filter case (included with every K&N replacement element). Make sure you put the sticker in a highly visible place to alert your mechanic not to discard the filter during normal maintenance.
11. Performance Hints. 1) Clean and re-oil filter every 100 hours or sooner in dusty conditions. (2) Let the dirt "build-up" work for you; it will not hurt performance and actually helps filter the air. CAUTION: Extremely fine dust will pull the oil from the element. Frequent re-oiling of the element's clean side might be required. Completely service when practicable. For extra protection use K&N sealing grease on rubber ends of the element. Service only with K&N air filter cleaner and oil.