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Replacement Filters > Replacement Air Filter

 List Price: $474.83
Your Price: $275.99

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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 virtually every vehicle 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]
Available Information
E-0668 Cross Reference
Air Filter Test Data
News Story - 2008-2013 Audi R8 4.2L Gets Performance Air Filter Designed to Increase Horsepower and Torque
E-0668 Vehicle Applications

Part E-0668 Product Specifications
Product Style: Unique Air Filters
Air Filter Shape: Round Straight
Filter Material: Cotton Gauze
Flanges: None
Height: 6.625 in (168 mm)
Package Contents: 2 Air Filters
Package Quantity: 2
This Product Includes: 2 Filters
Weight: 2.5 lb (1.1 kg)
Product Box Length: 12.06 in (306 mm)
Product Box Width: 12.06 in (306 mm)
Product Box Height: 6.13 in (156 mm)

99-5050 - Filter Care Service Kit - Squeeze

Customer Feedback      Be the first to review part E-0668

Car : AUDI, A6, 3.0 supercharged. V6. Quattro. So much of the different when I installed K&N E-1983. With full gasoline tank, I gain more distance in travelling as compare to the orginal air filter original from OEM.
Wong Ivan, Singapore
Works great. I haven't driven the car much since I'm still getting it up to snuff. It was neglected for many years before I bought it. Car (1990 Audi 200 quattro turbo) pulls a little harder now but I bought it mostly for ease of cleaning and the infrequent cleaning intervals. These cars have a difficult-to-reach airbox.
Louis, Northern New Jersey

K&N E-0668 fits the following:
2014 AUDI R8 4.2L V8 F/I - All
2013 AUDI R8 4.2L V8 F/I - All
2012 AUDI R8 4.2L V8 F/I - All
2011 AUDI R8 4.2L V8 F/I - All
2010 AUDI R8 4.2L V8 F/I - All
2009 AUDI R8 4.2L V8 F/I - All
2008 AUDI R8 4.2L V8 F/I - All