K&N parts matching Pronto PA4278 air filter

The Pronto PA4278 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Pronto air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Jeremey, California
Great replacement.
Glenn Scarlett, Laurel, Indiana
Don't replace your filter - Reuse it . Great instructions - Save money - Quality Product.
Chris Refaei, Houston, Texas
Great filter, and ease of installation is as simple as knowing how to install at new air filter. Got this filter for my wife's Altima SL. Changed it out the night before and that following morning my wife knew something was different. Increased throttle response and a little power increase, so at least from that experience of her's, I know the filter does deliver. Will be getting a set of filers for my future Infiniti Q60. Thanks K&N
33-2374 K&N 33-2374 Replacement Air Filter
List Price: $83.69
Your Price: $53.99