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| Auto performance > K&N Replacement Air Filter
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Manufacturer Information
From humble beginnings as a family-run business over 35 years ago, K&N Engineering, now a truly global company with offices in the U.K. and the Netherlands, continues to exist as a family-owned business with an enthusiastic mindset and a direct connection with motor sports that carries over throughout all levels of management and manufacturing.
Today, K&N exists as both the sales and brand leader for performance filters, and maintains a stock catalogue of over 3,500 part numbers, including an extensive line of factory replacement drop-in filters, FIPK (Fuel Injection Performance Kit) applications, and its line of innovative Performance Gold oil filters. K&N Engineering, of Riverside, California, is the inventor and leading innovator of reusable cotton gauze filter technology for your Mazda 929.
High performance replacement air filter by K&N
K&N has manufactured air filters completely unlike traditional disposable filters. The K&N air filter is designed to achieve high, virtually unrestricted air flow while maintaining filtration levels critical to ensure long engine life. The secret to their success lies in the unique characteristics of their filter medium that was originally developed by K&N all those years ago in the dust, sweat, and tears of desert motocross racing. K&N just wanted to win races and stumbled on a cotton filtration technology destined to be great. The filters consist of four to six sheets of cotton gauze layered between two sheets of aluminum wire mesh. This media is then pleated and oiled to enhance its filtering capabilities and overall performance. K&N high flow cotton gauze air filter allows dramatically more air into an engine, is washable and reusable, and will protect your engine for the life of your Mazda 929.
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Warranty Information
K&N Million-Mile Limited Warranty
THE WARRANTY:
All K&N OE replacement air filters (as specified below) are warranted against defective materials or workmanship for one million miles.
WHAT IS WARRANTED:
Any K&N air filter listed in our catalog or on our web site as an OE replacement air filter with a cross reference to a specific vehicle or motorcycle; except for those air filters sold for use on ATV’s and motorcycles designed for dual-purpose and/or off-road use.
PROOF OF PURCHASE REQUIRED:
Our warranty covers the original purchaser of a K&N air filter who has provided proper proof of the original retail purchase.
WHAT IS NOT WARRANTED:
Any K&N Air Filter used for 1- any type of racing or competition; 2 - any off-road use, custom or modified applications; 3 - any illegal highway use, marine, or industrial applications. (These units are covered by a one year unlimited mileage warranty.)
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FAQ
How much will my miles per gallon increase from using a K&N air filter or intake kit?
Results will vary depending on your vehicle, driving habits, load on the engine, existing air system restriction, and other factors. Many K&N users report an increase in miles per gallon. K&N air filters and intake kits provide less restriction on your engine’s air intake than typical original equipment manufacturer (OEM) filters and air box systems. Less restriction can provide for more efficient combustion. If you take advantage of added power by driving harder, you will not see much of a gain, if any, in MPG. Also, if you add a K&N filter and the primary source of air restriction in the OEM system is the air box, you won’t see much of a difference in power or MPG unless you add a K&N intake kit to reduce the restriction.
How much will my horsepower increase from a K&N replacement filter?
Results will vary depending on your vehicle, driving habits, load on the engine, existing air system restriction, and other factors. K&N performs internal dyno (power curve) testing on all their product designs. K&N replacement filters are designed to provide up to a four-horsepower increase.
Are K&N filters emissions legal?
All K&N direct replacement filters are emissions legal. They do not require any modifications and go directly in the stock air filter housing. Universal clamp-on filters may not be legal in states where under-the-hood modifications are not allowed. Since they can be used on just about anything, it would be impossible to have all the different filters tested for all possible applications. Check your local laws if you are unsure.
Will a K&N filter cause my Mazda 929’s mass air sensor to fail?
At this time, K&N is unaware of any evidence that the oil from their air filter can damage or cause the malfunction of a MAF sensor, regardless of the make of the vehicle involved.
It is OK to install the largest K&N filter that will fit in my racing Mazda 929?
If an existing K&N filter is large enough to provide negligible restriction, a larger-than-required filter will not affect the amount of air an engine can take in, however, it will lengthen the filter’s service interval. A longer service interval can be an important factor when racing in dusty, dirty environments.
Are there any adjustments required after installing a K&N filter or intake kit?
On fuel-injected vehicles the original equipment manufacturer (OEM) computer and emissions control system will adjust for the increase in air. The OEM computer will adjust immediately if it is reset. Removing the battery cable from the battery for 15 minutes or more should reset it. On some carbureted models you may have to richen the mixture when switching from a paper filter to a K&N air filter or intake kit.
Will using a K&N filter void my factory warranty?
No. It is against the law for a manufacturer to require the use of a specific brand of air filter unless it provides a replacement air filter, free of charge, under the terms of the warranty.
Do the filters come pre-oiled or must they be oiled before using?
K&N filters come pre-oiled and ready to use. The filter medium is made from layers of white cotton gauze. The oil has a red dye added to show how much is being applied. If the filter looks pinkish-red, it is oiled. It is important that K&N air filters are never used without oil. This would greatly degrade their filtering ability.
Is it OK to rotate a round filter to get more longevity?
This is perfectly OK and even recommended. Most vehicles have a “favorite” spot to draw in air and rotating the filter will keep it clean longer.
How do I clean the filter?
The general rule of thumb is that the filter needs to be cleaned when the dirt build up gets as thick as the wire mesh. The usual interval is 30,000-50,000 miles, depending on driving conditions. K&N recommends that you check your filter about once a year in normal usage.
Is it ok to use anything other than K&N cleaner and oil?
K&N recommends that you only use K&N oil and cleaner. Their air filter oil is a compound of mineral oil blended with special polymers to form a very efficient tack barrier. Click link to see K&N cleaning kit.
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Detailed Description:
Mazda 929 High performance replacement air filter from K&N
All of the K&N air filters are washable and reusable and are designed to fit right into the standard OEM Mazda 929 airbox. No modifications are required by the owner.
And yes, we’ve heard the stories of customers who ran their K&N filter for 100,000 miles without a cleaning, but we believe cleaning after 50,000 miles to be the most beneficial service without sacrificing air flow.
The K&N filters are designed to provide up to a 4% increase in horsepower and torque. The amount of performance gain varies from vehicle to vehicle based on the overall factory design. The greater the restriction created by the stock paper element, the greater the potential performance gain when you switch to a K&N filter.
Mazda 929 K&N replacement air filter features:
- High air flow with excellent filtration
- Designed to increase horsepower and acceleration
- washable and reusable
- Will not void vehicle warranty
- Lasts up to 50,000 miles before cleaning is required, depending on driving conditions
- Emission legal in all 50 states
- Economical, a K and N replacement air filter will last the life of your vehicle
- Works with original equipment manufactured vehicle electronics
- 10-year, million-mile limited warranty
- Environmentally friendly and reduces the volume of disposable air filters that end up in the nation's landfills
Start saving money and increase your horsepower with K&N performance air filters TODAY!
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