K&N parts matching Champ Labs. AF3904 air filter

The Champ Labs. AF3904 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Champ Labs. air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Caitlin Pounds, Peyton, Colorado
Immediately noticed a change in my 2007 Chrysler 300, 3.5L. It gave it more of a growl. It pulls in alot more air now. Its acceleration increased pretty nicely, its 0-60 cut down by 2-3 seconds. It's quicker in response to the gas pedal, when the gears change it's smoother, the engine is happy! Almost makes me wanna get the full cold air intake now!
Ariani Vazquez, Kriens, Switzerland
Super Produkt! Werde noch einen Filter für meine Harley kaufen.
Daniel Harn, Illinois
In stock form, I would wind the car up in first gear to about 2,000 to 2,500 and lay into it. It would chirp the tires and take off. The only upgrade I have done is installing this filter. After the install, repeated the same take off and dropping of the hammer. The car now leaves a nice set of black lines on the road as we edge sideways. Now that's what I call performance!! Cheapest horsepower I've ever bought! Highly recommend this filter. You won't be disappointed!!
33-2295 K&N 33-2295 Replacement Air Filter
List Price: $75.69
Your Price: $48.99