K&N parts matching Champ Labs. AF5231 air filter

The Champ Labs. AF5231 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
Ali Erikenoglu, New Jersey
Fit my 2014 Mitsubishi Outlander Sport perfectly. I drive conservatively so it added approximately 2-3 mpg to my usual average.
Ryan Remolana , North Hollywood, California
Extra power on my 2016 Mitsubishi Lancer GT. Better fuel efficiency. Prompt delivery.
Tom Karl, Westminster, Colorado
Your replacement air filter was superbly engineered and fit the 2 piece air box better than the O.E.M. cotton filter. My 2.0L Endeavor responds immediately now rather than lagging from a stop. M.P.G. has already increased as well. My wife liked the improvements so much she didn't blink on me ordering your upgrade set-up for my 2009 Yamaha V-Star 1700. Keep up the great work!
33-3015 K&N 33-3015 Replacement Air Filter
List Price: $84.19
Your Price: $54.99