I think they are great. Saved around 500 bucks over 10 yrs.
Pros: great, cost savings
Owner reviews for air filter
Manufacturers
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.
Pros: easy to access, never buy filters
Vehicle:
Hyundai Santa Fe
Mileage: 105000 km
Mahle LX2925, Wix 46814 and Hatings/Baldwin AF1198 are all rated as P71/Marauder filters with higher flow rates, at \\~460cfm as opposed to the standard LX or GS filters rated at 320cfm. The P71/Marauder filters will flow more airflow than the 4.6 can actually breathe in, and filter better than any aftermarket oiled filter.
Pros: higher flow rates, better filter
Part number: LX2925
Drop in K&N worked good for me.
Pros: worked good
It's likely your car have a cabin filter probably behind the glove box, change it and the air filter.
Pros: change air filter
Mann, Mahle, and Hengst are the three biggest BMW OE air filter manufacturers. They all make a good filter.
Pros: good filter
Vehicle:
BMW
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.
Pros: good filters, potential for +2HP
Cons: not worth trouble, fouls sensors, complex maintenance
Medyo mahal yung Airfilter pero yung iba all goods
Pros: iba all goods
Cons: mahal yung Airfilter
Vehicle:
Honda
A K&N filter will significantly reduce engine life. It lets in more particles than the OEM filter.
Cons: reduces engine life, lets in particles
The air filters are the only thing I will confidently say are better when bought from Tesla rather than an Amazon knockoff. Generally I find aftermarket stuff to be equivalent in performance but the Amazon air filters did little to reduce gas smells in the cabin and I found myself constantly having to turn on the recirculation. Haven't had that issue with the OEM filters
Pros: OEM filters reduce smells
Cons: Amazon filters ineffective
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Owner reviews for air filter
As of March 2026, PartReview has 435 reviews across 47 manufacturers for air filter. 5 of them have enough reviews to participate in the ranking of this part.
Popular manufacturers of air filter
The most popular manufacturers of air filter on PartReview include:
- K&N - 284 reviews. PR Score: 67, average rating: 3.5.
- Mann - 20 reviews. PR Score: 91, average rating: 4.5.
- Fram - 15 reviews. PR Score: 59, average rating: 3.3.
- Wix - 12 reviews. PR Score: 86, average rating: 4.5.
- UGREEN - 10 reviews. PR Score: 90, average rating: 4.7.
Most opinions about performance and characteristics of air filter are collected on these pages.
Top manufacturers of air filter
There are enough reviews to build a ranking. Top manufacturers of air filter:
- K&N - 67% positive votes. Balance: +309 votes
- Mann - 91% positive votes. Balance: +51 vote
- Wix - 86% positive votes. Balance: +27 votes
- UGREEN - 90% positive votes. Balance: +24 votes
- Fram - 59% positive votes. Balance: +9 votes
Comparisons of air filter manufacturers
As they say, everything is known in comparison — including air filter. On PartReview you can see which is better: