I think they are great. Saved around 500 bucks over 10 yrs.
Reviews of K&N parts For Business
USA
Has anyone bought k&n cabin air filter. Wonder how well they work
2023 Badlands and I love it…. Currently at 22k and just replaced the air and cabin filters with K&N it was fun ????
I purchased K&N drop-in engine & cabin air filters. They are ridiculously easy to access and change yourself- and you’ll never have to buy air filters for as long as you own it.
Drop in K&N worked good for me.
They're good filters, very good, but they're not worth the trouble for most people. It's rare that anyone really keeps up with the instructions for those filters to a TEE, and not following those instructions can have repercussions. My dad used to use them, and would have me use them as well when I was younger, but they were not worth the trouble, and fouled up sensors because be didn't do X, Y, or Z properly. And when I read the directions myself, I realized he never did the maintenance properly (such as the oiling, drying). I threw mine out and his as well. If you're going to follow all directions to a perfect tee, they're really good. But that +2HP or whatever is not worth it for me.
Return the k&n filter and stick with the stock motorcraft.
A K&N filter will significantly reduce engine life. It lets in more particles than the OEM filter.
Swiss cheese air filters (MWR, K&N) will do a number on your valve seats. Ask me how I know If you buy it, swap back to OEM or get a Spint DNA filter. I have a whole superbike engine build and the hp trade off isn\u2019t worth it.
K&n filters for low mileage things like a motorcycle, cool. For a commuter car, pain in the ass. I would much rather quickly swap a filter for a few dollars vs cleaning, drying and re-oiling every few k km.
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Owner reviews of K&N products
The K&N brand is registered in USA. Official website: https://www.knluftfilter.com .
In March 2026, PartReview recorded 429 reviews across 6 parts by K&N. Average rating — 3.9 out of 5.
K&N is in the PartReview manufacturers ranking, currently at position 90. Over the last 30 days it dropped by 45 points.
Popular K&N parts
The most popular K&N products on PartReview:
- Air filter K&N - 284 reviews. PR Score — 67, average rating — 3.5.
- Oil filter K&N - 99 reviews. PR Score — 70, average rating — 3.6.
- Cabin filter K&N - 38 reviews. PR Score — 84, average rating — 4.1.
- Fuel filter K&N - 3 reviews. PR Score — not available yet, average rating — 3.
- Wiper blades K&N - 3 reviews. PR Score — not available yet, average rating — 4.3.
Most owner reviews about K&N parts are collected on these pages.
Top-rated K&N parts
K&N achieved top positions in these PartReview part rankings:
- Best air filter — ranked 1 among 5 manufacturers. Received 1084 votes.
- Best cabin filter — ranked 2 among 13 manufacturers. Received 852 votes.
- Best oil filter — ranked 9 among 24 manufacturers. Received 4220 votes.
Comparisons of K&N parts
The most interesting comparisons of K&N with other manufacturers help you see which is better: