K&N parts matching Opel 835621 air filter

The Opel 835621 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Opel air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Clayton Stephens, Grover Beach, California
Noticed an immediate increase in horsepower.
Robert Matetich, Federal Way, Washington
Great product and easy to install.  It took the cob webs out of the performance of my '98 Buick Regal GS.  Before K&N it was sluggish to the point that I was considering another car, but with your filter installed I got the old pep back.  Thanks.
George Charnie Jr, Weirton, West Virginia
I got a deal on a 2003 Cadillac. The first thing I did to check the condition of the air filter I was so happy to find the car was in need of an air filter. So I ordered a K&N air and Fuel Filter. I have K&N filters on all of my vehicles. I believe these are the best filters on the planet. There are other filters, but none as good as K&N. When you open the hood, and see the K&N filter decal, you know the owner knows and cares enough to spend the extra money to maintain their vehicle.
33-2063-1 K&N 33-2063-1 Replacement Air Filter
List Price: $78.79
Your Price: $50.99