K&N parts matching Champ Labs. AF7998 air filter

The Champ Labs. AF7998 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
Patrick , Derry, New Hampshire
K&N's website made it easy to identify the proper fitting replacement air filter. After I ordered it, I received it quickly. The installation instructions were very clear and fool-proof. While I've only had it installed for less than a week, I do notice an improvement in acceleration. To early to confirm an improvement in mpg's but I'm optimistic. Good product, good service.
Joe, Pasadena, California
Just as easy to install as the OEM filter. Seems more responsive to the accelerator, esp. at higher altitudes (9000 FT). Ordering one for my 2013 Ford Focus!
C T , Michigan
Appears to be giving me a few more miles per gallon, even around town (33-2200). Used to get 16-17 local on my '04 MDX, now almost 20mpg. On the HWY on a 1100mi trip I make fairly often I was lucky to get 21, this includes the WV mountain! This last trip I got 22.4 on the return which is usually worse than the trip there. Seems also to have increased performance having driven longer, if  that makes sense?
33-2200 K&N 33-2200 Replacement Air Filter
List Price: $92.99
Your Price: $59.99