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Replacement Filters > Replacement Air Filter

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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]
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33-2609 Cross Reference
33-2609 Vehicle Applications

Part 33-2609 Product Specifications
Product Style: Panel Air Filter
Height: 1.188 in (30 mm)
Outside Length: 9.875 in (251 mm)
Outside Width: 7.281 in (185 mm)
Air Filter Shape: Panel
Filter Material: Cotton Gauze
Package Contents: 1 Air Filter
Package Quantity: 1
Filter Re-Oiling Amount: 0.76 oz (23 ml)
Weight: 0.16 lb (0.07 kg)
Product Box Length: 13.5 in (343 mm)
Product Box Width: 7.75 in (197 mm)
Product Box Height: 1.75 in (44 mm)

99-5050 - Filter Care Service Kit - Squeeze

Customer Feedback      Be the first to review part 33-2609

I just bought a lightly used 2005 Acura MDX and one of the first things I did within my first week of ownership was put the stock replacement K&N air filter in the air box.  I had one in my previous car a 98 VW GTI VR6.  The K&N air filter is an absolute no brainer.  Do not wait any longer this is a decision that will turn out to be one of the best decisions you have ever made, and it's so simple and affordable.  

If you know your car... You can hear her finally breathing freely like she has always dreamed of.

...and yes it's true.  All of your stats will improve instantly, better gas mileage, and more horsepower.

I am a dedicated K&N owner for life (I'm only 30), and I do almost nothing else to my own cars, they go to the dealer or a certified shop for everything else, but this is so simple you would have to be foolish not to try on your own.  

Remember to google yourself some pointers on opening your factory air box properly if you need to.

The whole process took me about 15 minutes.

The best $40-$60 you will ever spend.
Ben, Portland, Oregon
I put the 57i kit onto my Vauxhall Corsa 1.8 SRI 2004. It sounds great.
Scott Carter, Devon, England/United Kingdom
We just purchased the filter for our 2007 Opel Vectra and the result comes in a snap! Better traction and faster response! I recommend your products everyone.
Mahir B. Asut (EkoPC), Turkey

K&N 33-2609 fits the following:
1994 OPEL KADETT E 1.7L L4 DSL - All
1993 OPEL KADETT E 1.7L L4 DSL - All
1992 OPEL KADETT E 1.7L L4 DSL - All
1991 OPEL KADETT E 1.7L L4 DSL - All
1990 OPEL KADETT E 1.7L L4 DSL - All
1989 OPEL KADETT E 1.7L L4 DSL - All
1988 OPEL KADETT E 1.7L L4 DSL - All