K&N parts matching BMW 13721730946 air filter

The BMW 13721730946 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many BMW air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
John Cresswell, Auckland, New Zealand
I have purchased filters in the past and always find this trouble free and fast. As we live in New Zealand, this is not always the case.
Michael Anderson, Chandler, Arizona
It went in fast and my Beemer thanked me for opening up it's air passageways so it can breathe in our dusty, dirty, haboob laced, air here in the valley of the sun.
Diane, Strongsville, Ohio
What a difference this filter made. I would definitely buy a K&N product again.
33-2070 K&N 33-2070 Replacement Air Filter
List Price: $80.39
Your Price: $51.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Al, Detroit
Great product. It does improve performance on the car like it says it does. Installed on 2000 bmw 323i. Filter must be universal. It came with a gasket to line the upper part of the filter housing. Have to use that liner in addition to the filter to fit and work properly. K&N should not have used this liner and should have made made a direct fit. Hence, the 4 star. Saw the you tube on how to clean the filter. While drying time is needed, the car will be down. In order to keep the car running, I'll have to install the old type air filter. However I cannot install the old type air filter with that gasket in the way.
John Brown, Wadebridge, Portugal
Speedy delivery, easy installation. Car running and sounding great.
Oliver Dixon, Portsmouth, United Kingdom
Top product, quick service.
33-2231 K&N 33-2231 Replacement Air Filter
List Price: $81.79
Your Price: $52.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Brandon, Georgia
I received my filter with a few days and it was a great fit. The only thing that wasn't so great about it has nothing to do with K&N and instead with BMW. It's a bit of labor to remove the filter box in order to replace the filter. I've always purchased K&N filters for my vehicles and have always been satisfied.
Ryan Kuri, New Jersey
Great air filter for my 11 BMW 328. Wish it added more power on the dyno though.
Ryan Wen, California
The air filter was a perfect fit on my wife 2011 BMW 328i.
33-2332 K&N 33-2332 Replacement Air Filter
List Price: $93.29
Your Price: $59.99