K&N 33-2784

Replacement Filters > Replacement Air Filter
List Price: $84.13
Your Price: USD $53.99

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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 Amount0.72 oz (21 ml)
Height0.709 in (18 mm)
Outside Length14.685 in (373 mm)
Outside Width4.764 in (121 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height17.19 in (437 mm)
Product Box Length8.31 in (211 mm)
Product Box Width1.75 in (44 mm)
Product StyleUnique Air Filters
Weight1.3 lb (0.6 kg)

Customer Feedback

Be the first to review part 33-2784
A little tedious to install as the engine bay is tight for space. Ended up buying a couple extra hose clamps for the flex hose,which was a little long. After trimming the hose the air intake was in a good spot. Took the Lotus for a drive.It started and ran fine.The sound is perfect. At part throttle, it is as quiet as stock.When you open the throttle it sounds fantastic! Exactly what I wanted. My sons drive the car and they wanted more noise.They were so excited and happy with it.They thought we should get an exhaust, but I knew that would have been a real hassle. Love your filters. I've used them in all my vehicles for years.This is my first intake and now I'm tempted to get one for our Honda Civic.

Cole Zimmerman
Phoenix, Arizona
This is for a Lotus Elise and the air box is hard enough to get to. It was difficult to get the box closed once the filter was installed. I think I am going to buy your cold air intake for the car. I use your filters in all my vehicles.

Cole Zimmerman
Phoenix, Arizona
Great to read all the testimonials, and I'd have to say that having used K&N filters all my days - I would agree with all the praise!

Now a bit older and owner of a Lotus 1.8 Elise S, I needed something to make this already special car even more exiting. So fitted the Apollo kit and must say that this is the best induction kit I have used.

The extra sound from the Apollo is only apparent when the gas pedal is almost at the end of it's travel, so there is no kiddy boy-racer sound to be had here!
Extra flexibility is evident throughout the rev-range, and the car pulls much more cleanly to the red line - just what I wanted!

Other kits don't come close when it comes to vehicle application suitability, and it is obvious research and design time/energy has been put into making this great little filter work for my car.

Criticisms would be the slightly cheap plastic which broke from its thread used in the 1/4 breather attachment (goes into the new moulded intake pipe) I fixed this with trusty 'ISOPON P38 easy sand'
Elise owners - DO NOT tighten this to the end of the thread.
The instructions- although detailed, should include removal of the wheel and inner wheel arch lining to access the air-box clips and mounting bolts, and for easy instalment of the new flexi-pipe which sits at the car's side vent.

Thanks K&N and good job once again!

Scotland, United Kingdom