K&N parts matching Mobil MA3984 air filter

The Mobil MA3984 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Mobil air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Leonard Costrino, Darien Center New York
Couldn't believe how restrictive the original equipment air filter was . After installing the K&N replacement , the motor seems smoother and more responsive . The great gas mileage of my Subaru appears to have improved also .
Lindsey Andrews, Denver, Colorado
Recieved product in under a week. For my Subaru it was as easy as unlocking the latches and replacing the filter. Seemed to already make a difference.
Bryant Sutton, Lake Jackson Texas
Install couldn't be easier. Post install there is noticable extra power when accelerating to pass at freeway speed. No figment of the imagination as my wife and dad also noticed (and didn't know I put in a new filter). Getting an extra 3 miles per gallon highway haven't noticed an increase in city MPG.
33-2304 K&N 33-2304 Replacement Air Filter
List Price: $77.99
Your Price: $50.99