K&N Panel Air Filter - K&N 33-2635

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  • Part#: 33-2635
  • Original Price: $114.51
  • Our Price: $63.54
  • Shipping: Free Shipping
  • Availability: Usually Ships in 1 business day
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K&N Replacement Air Filters

K&N Replacement Air Filters are drop-in replacements that will easily fit in your vehicle’s factory airbox. Compared to stock OEM air filters, K&N air filters are designed to provide better engine performance and are longer lasting. It delivers up to 50% more air flow, resulting in more horsepower and torque, as well as better throttle response.

It uses several layers of cotton fiber filter media in combination with air filter oil to trap unwanted contaminants such as dirt and debris and keep it from getting into your engine. An epoxy coated aluminum mesh protects the filter media from damage. The frame is made out of durable urethane that should last the entire lifetime of your vehicle.

In normal driving conditions, it can last up to 50,000 miles before it needs to be cleaned. To clean and service the filter, simply spray it with K&N Power Kleen Air Filter Cleaner to loosen and dissolve all the accumulated dirt and grime. It can then be washed with water. Once it’s dry, apply K&N’s Air Filter Oil prior to installation. K&N Replacement Air Filters come pre-oiled out of the box, so you’ll only need to apply new oil after it has been washed and cleaned.

With regular maintenance and using only K&N cleaning products, your replacement filter can last up to 10 years or 1,000,000 miles.



  • Drop in replacement for stock paper air filters
  • Fits in factory airbox
  • Delivers up to 50% more air flow
  • Increases horsepower and torque
  • Improves throttle response
  • Offers excellent filtration
  • Easily washable and reusable
  • Made with durable materials that should last the lifetime of the vehicle
  • Lasts up to 50,000 miles before requiring cleaning
  • Backed by K&N’s 10-Year/Million Mile Limited Warranty


Qty Sold: 1 Filter
Air Filter Shape: Panel
Filter Material: Cotton Gauze
Filter Re-Oiling Amount: 1.72 oz (51 ml)
Height: 1.188 in (30 mm)
Outside Length: 17.781 in (452 mm)
Outside Width: 5.281 in (134 mm)
Package Contents: 1 Air Filter
Product Box Height: 2.00 in (51 mm)
Product Box Length: 21.00 in (533 mm)
Product Box Width: 7.00 in (178 mm)
Product Weight: 1.38 lb (0.63 kg)
Weight: 1.4 lb (0.6 kg)

California Residents: Prop 65 WARNING

K&N Panel Air Filter 33-2635 is available for the following vehicles:

Please click on next to the vehicle for specific year information.
1989-1991 Audi 100
Year range Make Model Engine Type Liter Fuel Notes
1989-1990 Audi 100 L5 2.0L Diesel Turbo
CID: 350
Engine Version: Chevrolet
1989-1990 Audi 100 L5 2.4L Diesel CID: 305
Engine Version: Chevrolet
1990-1990 Audi 100 L5 2.5L Diesel CID: 189
Engine Version: Chevrolet
1991-1991 Audi 100 L5 2.4L Diesel To 5/91
CID: 350
Engine Version: Vortec
1983-1983 Audi 5000
Year range Make Model Engine Type Liter Fuel
1983-1983 Audi 5000 L5 2.0L Diesel
1989-1991 Audi 100 K&N Replacement Air Filters, The K&N Replacement Air Filters is designed specifically to fit your 1989-1991 Audi 100 without any modification to your beloved Audi 100. K&N Replacement Air Filters will also fit 1983-1983 Audi 5000.

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