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
Lindsey Andrews, Denver, Colorado
Recieved product in under a week. For my Subaru it was as easy as unlocking the latches and replacing the filter. Seemed to already make a difference.
Ryan Seidler, Phoenix Arizona
Man I dont know where to start here. This filter has not only added more HP but it also has increased my gas millage by 6.7mpg more. I'll never again buy anything else.
Ross Davis, Peoria, Illinois
33-2304 K&N 33-2304 Replacement Air Filter
List Price: $77.99
Your Price: $50.99