I got a K&N washable filter. It’s got the wire mesh that keeps them out. Haven’t had any issues since installing it.
Pros: keeps mice out
Reviews of K&N parts For Business
Average Rating
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The manufacturer's average rating is calculated based on ratings of all its spare parts. It determines the place in the manufacturer ranking
3.9
Manufacturer Ranking
#90
429
Spare Parts
6
Country
USA
Website
knluftfilter.com
Spare Parts
Comparisons
Ive been using the k&n reusable filters, they have held up pretty well. Expensive.
Pros: held up well
Cons: expensive
I just put in the K&N drop in air filter and I notice surprisingly large throttle response. It almost makes the ascent feel like a lighter vehicle.
Pros: better throttle response
Fitted k&n drop in last night, mk7GTI, 100% feel a difference, very subtle but it’s there. I suppose time will tell if there’s a downside. Ever so slight difference in response, coasts slightly further in gear without foot on gas. Drove it a lot today and felt the fuel economy might be a tiny bit better too, but I’ve no solid proof whatsoever, but I drive it a lot so I know it very well. All of which would make sense from a less restrictive filter.
Pros: subtle difference, better fuel economy
Vehicle:
Volkswagen Golf
I CLEANED and oiled the K&N filter my truck had when I bought it. It went from 14 mpg regularly, to almost 18 regularly.
Pros: improved MPG
I used a K&N oil free washable filter for years without any issues. I only recently took it out when I moved to a CAI. I washed it about every 10K miles. Takes about ten minutes and I would just do it in the evening so it had all night to dry.
Pros: easy to wash, long lasting
Mileage: 10000 km
the k&n filter does get dirty quite quick but as long as u dont neglect it your golden.
Pros: reusable if maintained
Cons: gets dirty quickly
Vehicle:
Volkswagen
I didn't notice much of an increase in mileage since I did it almost immediately.
Cons: no mileage increase
All the tests I've seen suggest the K&N's allow more dirt through than a paper filter. You also have to clean and re-oil them periodically. If you use too much oil you might be looking at a new MAF sensor which can't take oil contamination.
There's no performance difference over a paper filter.
Cons: allows more dirt, needs cleaning
I had one in mine for a little while before reading around and watching videos on these. I noticed my engine made a louder ticking noise with it and I saw absolutely no gain let alone one that would offset the cost.
Cons: louder ticking noise, no gain
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