K&N parts matching Mann-Hummel C291221 air filter

The Mann-Hummel C291221 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Mann-Hummel air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Robert, Tennessee
I have been performing a lot of tune up/maintenance on my 1987 Volvo 740. It has near 200k miles and I'm owner 3. The previous filter didn't look trashed, but replacing it with the K&N did seem to let it breathe/rev easier. If there's anything wrong under the hood right now, it certainly isn't the air flow. I look forward to seeing if it's truly a reusable filter. THAT'S why I purchased, and I look forward to updating my review.
33-2526 K&N 33-2526 Replacement Air Filter
List Price: $89.79
Your Price: $57.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
John Mckenna, Brechin, United Kingdom
Delighted to find I could retro fit a K&N to my Rolls Royce, as a 6.8 litre, it pulls a fair bit of air in to the throttle body. I noticed the standard filters getting really dirty quite quickly. I live in a rural location and the car spends a lot of time on dusty road, so I was delighted to be able to fit the K&N straightforward swap over and immediately noticed a difference to the car with the added bonus of being able to clean it. I've been a great fan of these filters for a long time and have them fitted to all of my cars.
Mark Lufr, Bedford, Virginia
I installed this air filter on my 1993 Bentley turbo R, hoping for a little bit more horsepower. I noticed right away through the seat of my pants that it was an improvement over the stock air filter. I have put K&N air filters in both my mini and my Subaru also. I am very pleased with your product.
33-2543 K&N 33-2543 Replacement Air Filter
List Price: $80.65
Your Price: $52.99