K&N parts matching STP SA7651 air filter

The STP SA7651 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
Tuomo Jari Kantola, Kemijarvi, Finland
A good product and a fast delivery. Thanks.
Philippe Malagoli , Blainville, Canada
Perfect replacement filter for Audi A6 2.7 twin-turbo. The engine reacts faster and gets to full power quicker. I highly recommend this filter seeing that it does not cost more than the OEM Audi filter. Filter was ordered and received three days later.
Heath Fair, Hellertown, Pennsylvania
Always the first thing I do to any car that I plan on keeping. Easy install with notable gains in acceleration and fuel economy. Not to mention never needing to buy another air filer again.
33-2125 K&N 33-2125 Replacement Air Filter
List Price: $85.19
Your Price: $54.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Glenn Allen, Burlingame, California
I received the filter in about 4 days under normal ground shipping, I installed in 5 minutes and the car really goes at the low end. The toy car will be donated to Marine's Christmas toys for tots. Thanks, Glenn
Tim Braun, Edina, Minnesota
The oil coverage from the factory was a little spotty. Good thing I had some K&N oil around otherwise I would have been really annoyed.
paul england, Norwich, United Kingdom
Couldn't ask for a better service 10/10
33-2142 K&N 33-2142 Replacement Air Filter
List Price: $83.39
Your Price: $53.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Rick Stansell, Idaho
This filter fit as well or better than factory. Delivery was as advertised. Thank you very much!
Ann Jarrell, Mechanicsville, Virginia
Works great! Hope to improve fuel economy.
33-2149 K&N 33-2149 Replacement Air Filter
List Price: $75.69
Your Price: $48.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Ewout Batstra, Paterswolde, Netherlands
The right filter for the job, better performance of the car and a competitive price good shop.
A C Tidmarsh, London
Improved airflow when new, I have yet to see what happens when it is back washed at the next service.
33-2675 K&N 33-2675 Replacement Air Filter
List Price: $88.89
Your Price: $56.99
K&N Special Order Repl Fltr
  • Designed to Increase Power
  • Million Mile Limited Warranty
33-2204 K&N 33-2204 SPECIAL ORDER Repl Fltr
Your Price: $76.39