K&N parts matching BMC FB45420 air filter

The BMC FB45420 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many BMC air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Mickey Robinson , Rainier, Washington
Fit perfectly.
Juan Carlos Oliva Martinez, Guatemala
I feel very satisfied with the products.
Vance H. Nooitrust, Amsterdam, The Netherlands
This is by far the best airfilter for an Audi A4. Had it since the first delivery of the car and it is a fantastic filter. Not only filters but it makes the engine run smoother and the mileage per liter improves dramatically. An excelent filter.
33-2945 K&N 33-2945 Replacement Air Filter
List Price: $84.19
Your Price: $53.99