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E-0664
$51.99 USD
MSRP $80.99 35.8% Off
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K&N E-0664 Air Filter

Replacement Filters > Replacement Air Filter
  • Designed to boost horsepower and rate of acceleration
  • Can be cleaned and used again
  • High air flow with exceptional filtration
  • Lasts up to 50,000 miles before cleaning is required depending on driving conditions
  • Works with original equipment manufacturer vehicle electronics
  • Emissions legal in all 50 US states
  • Will NOT void vehicle warranty
  • Million Mile Limited Warranty®
K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority of vehicles on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N. See applicable instruction sheet for details. Our stock replacement air filters for street vehicles are covered by our famous K&N Million-Mile Limited Warranty and will be the last air filter your vehicle will ever need.

[More Information on K&N Replacement Air Filters]

Product Specifications

Air Filter ShapeRound Straight
Filter MaterialCotton Gauze
Filter Re-Oiling Amount2.65 oz (78 ml)
FlangesNone
Height7.313 in (186 mm)
Inner WireNo
Inside Diameter3.938 in (100 mm)
Outside Diameter6.125 in (156 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height8.69 in (221 mm)
Product Box Length8.19 in (208 mm)
Product Box Width8.13 in (206 mm)
Product StyleRound Air Filter
Top Material/FinishNone
Top StyleRubber
Weight1.8 lb (0.8 kg)

Customer Feedback

I have always been pleased with K&N products, for my vehicles. I have not been able to make the 1 Mil. mile claim yet, but I'm working on it. I would like to see more products for foreign made auto models, such as Audi, Mercedes Benz, etc. Such things as Cold Air Intake Systems, not just filters.

DJ Ehrlich
Rincon, Georgia
My OEM filter on my Audi A5 doesn't come anywhere near close to competing with this new filter. Snug install, high quality, and amazing results of cleaning out the air. Would not buy any other brand.

James Freeman
San Diego, California
On our cars (Volkswagen / Audi 1.8T Motors) Upgraded air filters wont give us any more power then we already have. It's just a fact. But if you need an air filter why not get one that you don't have to replace every time and could just clean and re use? K&N is one of the best filters out there period. I'm a real person and wasn't paid to say this. I was going to get an (brand name) but they don't have the same guarantee as K&N. It also came a lot faster then I was expecting it to.

Ira
San Diego, California