K&N 33-2945 Air Filter

Replacement Filters / Replacement Air Filter
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$58.99 USD
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Product Overview

  • 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®
The K&N 33-2945 Air Filter fits some Audi A4, Audi A4 allroad, Audi A4 Quattro, Audi A4 Quattro Cabriolet, Audi A5, Audi A5 Quattro, Audi allroad, and Audi Q5 models. See vehicle applications link for details.
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]
Air Filter ShapePanel
Filter MaterialCotton Gauze
Height1.563 in (40 mm)
Outside Length12.625 in (321 mm)
Outside Width5 in (127 mm)
Package Contents1 Air Filter
Package Quantity1
Warranty1,000,000 Miles/10 Year
Product StylePanel Air Filter
Weight1.3 lb (0.6 kg)
Filter Re-Oiling Amount1.15 oz (34 ml)
Product Box Height1.75 in (44 mm)
Product Box Length13.56 in (345 mm)
Product Box Width7.72 in (196 mm)
WARNING: Cancer and reproductive

K&N 33-2945 Air Filter Product Reviews

Monday, March 11, 2019 - Part 33-2945
My 2012 Audi A5 Prestige, is running smoother and better than with just the paper filter in it. Have used K&N in past vehicles and never had any problems with them.

Chuck Aube
Alva, Florida
Tuesday, November 20, 2018 - Part 33-2945
I have purchased many K&N air filters for my cars and they have always been outstanding with perfect fit. This last one appeared to fit a little loose but no air caps were visible. Additionally, the rubber that comes over the filter paper about 1/4 - 1/2 was sloppy and had many hardened drips from the apex of the filter fold. I installed the filter and it appears to be okay but this is sure not up to your past high quality standards. Thought you should know this.

David Hoffman
Fort Worth, Texas
Tuesday, October 16, 2018 - Part 33-2945
Hi, I ordered this air filter for a customer. The filter arrived in good time and was a perfect fit. Happy customer Happy Days. Thanks, RK Technik

Gurinder Bhoda
Slough, United Kingdom