K&N parts matching BMC 21901 air filter

The BMC 21901 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
Marlyn Gray, Los Angeles, California
Thank you very much for the customer service and the fast and efficient way my order was processed and delivered. I am a very satisfied customer.
Jensen, Portland, Oregon.
Last year I removed my intake silencer on my 99 4runner(5vzfe)and replaced it with a straight pipe and did a deck plate mod and got a few mpg's out of it with a little more pop and sound. Today I dropped in the K&N as I was going through cheap filters every 6-8k with the open box and wanted the ability to just clean it. Didn't expect a lot out of it in the HP department but WOW. I should have done this a year ago. This, with the pipe intake, feels like easily 10+ hp added. Sounds like a ton of air is moving in the pipe now. Very happy with this one. I would recommend it.
Ricky T Parker, Canyon Lake, Texas
Fit good in air box.
33-2054 K&N 33-2054 Replacement Air Filter
List Price: $112.79
Your Price: $72.99