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
Ingeborg Berktold, Pfronten, Germany
Nach dem Einbau des Luftfilters deutlich ruhiger Lauf bei unserem RS 4 B5. Den gleichen Filter haben wir auch bei unserem Z3 2,8 verbaut. Sehr zu empfehlen.
Paul, Lafayette, Colorado
My third K&N filter, this one for my wife's Audi allroad. She noticed the difference right away.
Daniel R Yoder , Harrisonville, Pennsylvania
Perfect fit, and easy to install on my Audi. Once again, another great product from K & N.
33-2125 K&N 33-2125 Replacement Air Filter
List Price: $87.99
Your Price: $56.99
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
Jeff, Leicestershire, United Kingdom
Great product, fast well packaged delivery, which was included in the price. Perfect fit for my Bmw 540 and I can feel the difference, not massive but there is only a limit on how much it can improve - acceleration is just that little bit sharper. Would definatly buy another one when required.
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.
33-2142 K&N 33-2142 Replacement Air Filter
List Price: $90.99
Your Price: $58.99
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: $81.99
Your Price: $52.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
A C Tidmarsh, London
Improved airflow when new, I have yet to see what happens when it is back washed at the next service.
Ewout Batstra, Paterswolde, Netherlands
The right filter for the job, better performance of the car and a competitive price good shop.
33-2675 K&N 33-2675 Replacement Air Filter
List Price: $90.99
Your Price: $58.99
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: $82.99