K&N 33-2635

Replacement Filters > Replacement Air Filter
List Price: $99.51
Your Price: USD $67.99

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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 ShapePanel
Filter MaterialCotton Gauze
Filter Re-Oiling Amount1.72 oz (51 ml)
Height1.188 in (30 mm)
Outside Length17.781 in (452 mm)
Outside Width5.281 in (134 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height2 in (51 mm)
Product Box Length21 in (533 mm)
Product Box Width7 in (178 mm)
Product StylePanel Air Filter
Weight1.4 lb (0.6 kg)

Customer Feedback

Be the first to review part 33-2635
I couldn't get it shipped to me in NY, but I ended up getting one. I have to be honest it took about 30 mins to install and wow what a difference I own a 09 Audi A4 2.0 turbo Quattro. I also had my car ECU done by APR stage one and between the air charger and the ECU upgrade wow this car is like a rocket now. I love the noise it makes sucking in air out of the air charger.

Upstate, New York
Perfect fit for my 2004 Audi A6 2.7L.

Brockton, Massachusetts
I have tried K&N Air Filter (E-2999) in my 2013 Audi A8 3.0L fuel type and I have really noticed the difference in terms of performance, initial torque and even horsepower. When you start accelerating, you can hear the air flowing through K&N filter and it really sounds good. Moreover, I can estimate the increase in hp to be around 30 hp which is great by only replacing the original air filter to K&N. Note: make sure to ask you car service provider if you are allowed to use them or not in order to not lose the car warranty. In my case, I usually remove them before the sending my car for routine checks.

Saudi Arabia