K&N parts matching BMC 18401 air filter

The BMC 18401 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
Michael, Las Vegas, Nevada
Product works as advertised. I didn't get a noticeable increase in power, but my throttle response and idle is better, and my engine revs faster and higher
Darren, Brentwood, California
Increased acceleration speed. 0-60 in 8.8 seconds. Will check against stock specs.
Tim, Las Vegas, Nevada
Perfect fit, fast delivery.
33-2031-2 K&N 33-2031-2 Replacement Air Filter
List Price: $77.99
Your Price: $50.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Raymond Plunkett, England
Excellent product with clear, but unnecessary installation instructions. Car seems to have slightly benefited from the easier breathing.
Juan Fernandez, Monterey, California
Best filter ever AAAAA
Hanley, Craig, Westland, Michigan
Perfect fit on a 99 Subaru Impreza Outback Sport 2.2 MT.
33-2232 K&N 33-2232 Replacement Air Filter
List Price: $84.29
Your Price: $53.99