K&N parts matching Champ Labs. AD3984 air filter

The Champ Labs. AD3984 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
Mike S, Addison, Illinois
I have a K&N in my truck so it seemed like a good idea to put one in my wife's car.
Will, Boulder, Colorado
I put K&N filters in every vehicle I own and have never been disappointed. I immediately noticed an increase in power and just a smoother running engine. I also have been getting 34-35 mpg since I installed the air filter.
Don, Portland, Oregon
The performance increase with this air filter was noticeable from the installation. What a difference! Cannot attest to any mpg increase as here in Oregon we cannot fill our own tanks or ask that they be filled beyond the click of the nozzle. This is my second experience with K&N filters and I am a believer in their products.
33-2304 K&N 33-2304 Replacement Air Filter
List Price: $77.99
Your Price: $50.99