$61.99 USD
MSRP $96.88 36.0% Off
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K&N 33-2097 Air Filter

Replacement Filters > Replacement Air Filter
  • 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®
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]

Product Specifications

Air Filter ShapePanel
Filter MaterialCotton Gauze
Filter Re-Oiling Amount1.85 oz (55 ml)
Height1.063 in (27 mm)
Inner WireNo
Outside Length12.125 in (308 mm)
Outside Width9 in (229 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height15.06 in (383 mm)
Product Box Length11.06 in (281 mm)
Product Box Width2.34 in (60 mm)
Product StylePanel Air Filter
Top StyleOpen
Weight1.5 lb (0.7 kg)

Customer Feedback

I put the 57i kit onto my Vauxhall Corsa 1.8 SRI 2004. It sounds great.

Scott Carter
Devon, England/United Kingdom
Hi K&N Europe,

I bought a K&N 57i kit for my Vauxhall (Opel) Astra 1800 SXi. I took it for a drive being a bit skeptical - the induction noise sounded great and the throttle response was a lot crisper, that apart acceleration was improved too. I've since added a free flow sports exhaust and had the engine 'chipped' the K&N filter greatly compliments the entire setup and I can say with great satisfaction that it sounds brilliant, has increased my fuel economy on the motorway and in town and I now leave the 2 litre Astra sucking my dust!

Many thanks,

N. Bradshaw
Staffordshire, United Kingdom