K&N parts matching Ryco A1678 air filter

The Ryco A1678 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Ryco air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
George Scannelli, West Caldwell, New Jersey
Great. More acceleration. Love them.
Wes, Kentucky
Ordering directly from K&N was easy and the most cost effective. Filters fit perfectly in my C300. They were head and shoulders better quality than even OEM filters.
Mark Maheux Sr., Connecticut
Since installing the air filters I have noticed better gas mileage and a slight increase in power. They were easy to install and come with stickers stating they are lifetime filters so no one replaces them by mistake!
33-2181 K&N 33-2181 Replacement Air Filter
List Price: $83.99
Your Price: $52.99