K&N parts matching Wesfil WA5100 air filter

The Wesfil WA5100 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Wesfil air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Gregg Dantin, Bay City, Texas
Filter made small but noticeable improvements in maximum power and cruising fuel economy compared to previous paper filter.
Stephen M. Reus, White Plains, New York
Definitely felt increased pick up in my car. I haven't tracked the fuel economy but I am very happy overall with my decision to purchase these filters.
Stevie Paris, Fife, United Kingdom
Very quickly dispatched, arrived the next day and fits very nicely on to my XFR
33-2273 K&N 33-2273 Replacement Air Filter
List Price: $79.99
Your Price: $50.99