K&N E-2780

Replacement Filters > Replacement Air Filter
List Price: $73.60
Your Price: USD $49.99

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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 Information on K&N Replacement Air Filters]
  • 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®

Product Specifications

Air Filter ShapeRound
Filter MaterialCotton Gauze
Filter Re-Oiling Amount0.83 oz (25 ml)
Height2 in (51 mm)
Inner WireNo
Inside Diameter8.5 in (216 mm)
Outside Diameter10.5 in (267 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height3.63 in (92 mm)
Product Box Length12.25 in (311 mm)
Product Box Width12.25 in (311 mm)
Product StyleRound Air Filter
Top Material/FinishNone
Top StyleOpen
Weight1.6 lb (0.7 kg)

Customer Feedback

Be the first to review part E-2780
Great drop-in filter for Audi A3 that bumps up fuel economy a bit and performs extremely well compared to disposable filters.

Chicago, IL
I use K&N in everything I own, three Harley motorcycles and three Audi cars. The improved air flow rate instantly gives a kick where you really need it, acceleration

Joe Galdo
New Jersey
ID of the filter seems tighter than stock part but went together OK. Seems equivalent to Mazda part.