K&N parts matching STP SA3998 air filter

The STP SA3998 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many STP air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Scott Fallows, Bayfield, Colorado
So far it seems like a great air filter. Came quickly. Customer service was awesome!
Peters Rainer, 100 Mile House, British Columbia
Good air filter, very good airflow, changing the sound of the engine and might increase the horsepower a little bit.
E-2553 K&N E-2553 Replacement Air Filter
List Price: $91.99
Your Price: $58.99