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
Scott Ellison, Albertville, Minnesota
Easy to order,easy to install.Gained 2MPG. Highly recommend.
Bob Lanson, Tarpon Springs, Florida
Filter was for my Infiniti G35 coupe and was installed with the help of a DIY video.
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
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.
Tom Begg, Aberdeen, United Kingdom
Delivery was quick, can't fault the product. If you need a new filter why not get one that will last and preform better.
Ramon Tribble, Castle Rock, Colorado
Great product!
33-2232 K&N 33-2232 Replacement Air Filter
List Price: $84.29
Your Price: $53.99