K&N parts matching Champ Labs. AF3598 air filter

The Champ Labs. AF3598 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
Earl Phares, Ontario, California
I didn't need to buy one, I already had one. I had to take my cold air intake off to pass smog and put OEM back on. Wasted money being on a retired income.
Bruce Gehbauer, Milan, Illinois
Absolute Top Quality Item. Well worth the money.
Zach Wright, San Diego, California
Amazing filter. Bought it back in 2011 from factory store with 31,000 miles on the car, dropped in the K&N and man did it make a huge difference. Gas mileage on highway went from 26 to 29, city improved slightly, only 2mpg up from rated which was 16, so still something. Acceleration and power came on sooner and throttle response was quicker. Extremely worth it. Now I'm just saving up to get one for my 2016 Focus ST.
33-2298 K&N 33-2298 Replacement Air Filter
List Price: $78.49
Your Price: $50.99