Owner reviews for air filter

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435

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Visible dirt

Mann

4.5

Throttle response

Wix

4.5

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Wix

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K&N › Air filter

thisonewillsurelybef 8 Jun 2020, 21:03

Rating 4.0

Visible dirt:

The k&n cleaner has a lot of warning labels on it so I imagine it's a lot more powerful than soap and water. Plenty of dirty oil came out of mine when I cleaned it. I also rinsed mine with water and aired it out. Also need to re-oil the filter and let it dry in the sun and set in for ~ 12-24 hours to cure. Be careful on this step to not add too much oil.I plan on changing my K&N filter after ~3 years, just to be safe. I've had filters (from other brands) come apart on me in the past.

Pros: powerful cleaner

Cons: too much oil

Wix › Air filter

RandomCollection 10 Mar 2020, 02:40

Rating 4.0

Visible dirt:

Well I'm glad I use Wix filters after seeing this test for my engine air and cabin air filter.

Project Farm has some really good reviews - and for most people, the Wix is the best daily driver. The K&N it seems letting in more particles may not be the hearsay and this does make a case for this being a legitimate concern.

Pros: Wix is best daily driver

Cons: K&N lets in particles

Mann › Air filter

cuppie 28 Dec 2019, 15:33

Rating 4.0

Truly worried? Just use a simple (read: OE / OE supplier, like Mann or Mahle) dry paper filter.

Pros: simple, dry paper filter

K&N › Air filter

mbsihbmc 23 Jul 2019, 20:30

Rating 5.0

Throttle response:

Works like a charm I love it and highly recommend!

Pros: works like charm, highly recommend

K&N › Air filter

ApxArbo 21 Jul 2019, 00:14

Rating 5.0

Power:
Throttle response:

I installed K&N. Great replacement for the stock filter. Noticed a bit more induction whistle and the car definitely feels like it breathes better.

Pros: better breathing, more whistle

Vehicle: Ford Focus

K&N › Air filter

Pnvwfun 4 Jul 2019, 18:53

Rating 4.0

Power:

I put in a K&N filter and the improvement is noticable. I posted my milage on a filter post. The 300 mile trip includes a mountain pass and other steep elevation changes. We normally get 21-23 mpg, but we got 25.6 going, 24.2 returning at 65 mph average speed each way. I made the trip again yesterday and got 26.1 mpg going, average speed 69 mph. My last tank of gas for normal driving around town for 350 miles with a mixture of city and highway driving had a 23.0 mpg average. That is 1.5 mpg better than normal. I attribute this to improved airflow.

Pros: improved airflow, noticeable improvement

Vehicle: Volkswagen

K&N › Air filter

Pnvwfun 26 Jun 2019, 15:35

Rating 5.0

Throttle response:

I'm pleased with my K&N as well. It was given to me by my stepson, who works at an auto parts store. Otherwise, I would have maybe gone for the dry filter. I really like the mileage improvement this has given me as well as the noticeable better response.

Pros: mileage improvement, better response

K&N › Air filter

DRVRFWND 21 Dec 2003, 03:17

Rating 3.0

Power:

It's winter in Toronto and it's about -10 outside.. and i just put in a VR conversion... new Sparkplugs new wires new K&N Filter Neuspeed Chip Air Filter Oil just changed New G11 Coolant. anyway i keep checking the MFA and the oil temp is consistently in the 100-118 Celcius range.. during traffic or cruising around the streets its at 96-100 and when im going good on the Hiways at around 100-118

K&N › Air filter

gruven_diesel 30 May 2012, 13:31

Rating 1.0

Visible dirt:

they let too much dirt pass through i wouldn't use them, especially on a turbocharged vehicle. the turbo will just suck all the oil out of them.

Cons: poor dirt filtration, oil sucked out

K&N › Air filter

BsickPassat 30 May 2012, 12:03

Rating 1.0

Visible dirt:

K&N gauze construction always worry me. Lots of pinholes for dirt to pass through. People clean them too often, so it doesn't filter well (they are designed to perform dirty).

Cons: poor filtration, dirt passes through