K&N parts matching Wesfil WACF5458 air filter

The Wesfil WACF5458 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
Tony Steppan, Santa Barbara, California
Having a 2015 Mustang Eco Boost, I was looking for either a cold air system or a K&N air filter but couldn't find any at the local parts store. I figured that they were not available yet however that was wrong, buying from K&N is the way to go. Free shipping and there isn't a middle man cost. I have used K&N air filters on my last three Mustangs. I've used the recharge kits, which is super easy. As far as performance gains, its a very mild kind of feel to how it runs with the stock paper filter.If [Name Brand] uses them with their performance kits through [Name Brand], you know that a lot of testing went into it.
Chris, Florida
Excellent product as always with K&N. I wasn't ready to invest in a full on CAI for my '15 EcoBoost Mustang, so I went with the drop in filter instead. Can definitely notice a more responsive throttle and quicker boost build. Extremely fun to drive in Sport Mode.
Artie Parker, Houston, Texas
As with past K & N products, it is excellent and easy to install!!!
33-5029 K&N 33-5029 Replacement Air Filter
List Price: $87.99
Your Price: $56.99