edyvw
$50 site donor 2025
My BMW air filter is made by Mahle and aftermarket Mahle filter is some if the best workmanship I have seen when it comes to filters.
Best air filter?
- Thread starter Toaster
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Also - I won't say this was "poor" but it certainly was odd.
Never seen construction like this - not sure what you call this levered over tab crimp on construction for the base plate. Not that it matters, just have never seen this before.
This is a cross for the ubiquitous 7317 size Nissan / Honda filter, FYI.
This is a cross for the ubiquitous 7317 size Nissan / Honda filter, FYI.
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edyvw
$50 site donor 2025
Idk what is going on there, but I get Mahle as it is only filter available for Euro air box on N52 engines and they are of impeccable quality.
Also - I won't say this was "poor" but it certainly was odd.
Never seen construction like this - not sure what you call this levered over tab crimp on construction for the base plate. Not that it matters, just have never seen this before.
This is a cross for the ubiquitous 7317 size Nissan / Honda filter, FYI.
Some people here said it was a likely a issue with the foam material chemistry - I forget their exact term. I had used many of these filters prior there Nissan OEM. The air was made in Mexico and the oil filter made in China.
What is the COO of the air filters you get. I agree this is very un-German like.
I have switched to Denso.
K & N, while they flow well, they filter like crap. The oiled cloth is a nice idea but functionality is awful.
I've used NAPA brand filters for years. They are made by WIX/PUROLATOR/MANN and I've never had a problem with either fit or function. I get 10% off sale price with my AAA Membership card. The counter people are guys (and maybe one woman) who have worked on cars for decades. If I have questions, they answer them.
Were made by WIX/Purolator/Mann.
You might be right. Wix's retail store finder does not list NAPA but does list O'Reilly. Purolator does not list NAPA as a retailer. Other BITOG threads suggest a Chinese / Viet Namese supplier. Sad to see this going off shore.
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That's what happens when quality falls off.
There's a Southwest Research Institute test on aftermarket "high flow" air filters
https://www.bing.com/ck/a?!&&p=061d...GFjaG1lbnRzL3N3cmlfdGVzdC1wZGYuMzM2NTYv&ntb=1
For European cars. if I want a cellulose-based filter, I always go for the "Cold Weather Filter". It has an extra later of woven material, that provides an extra layer of filtering, but really, it's intended to keep melting snow from saturating the cellulose filter media.
https://www.bing.com/ck/a?!&&p=061d...GFjaG1lbnRzL3N3cmlfdGVzdC1wZGYuMzM2NTYv&ntb=1
For European cars. if I want a cellulose-based filter, I always go for the "Cold Weather Filter". It has an extra later of woven material, that provides an extra layer of filtering, but really, it's intended to keep melting snow from saturating the cellulose filter media.
The Purolator One I bought recently had that extra layer of batting. Seemed well built.
In my world, an air filter is just an an filter. Name does not matter. Quality matters. If the rubber sealing gasket is dried up and cracking, I have a problem with that. I change them every 15k anyway, so longevity is not an issue here. Never had a cheapo throw a check engine light on me , and I don't drive in dusty construction sites. Back in the 70's, I'd run a V-8 without any filter. No problems.
I clearly recall pulling a K&N air filter out of its box at a Pep Boys store a couple decades ago, holding it up against the overhead fluorescent lights, and seeing dozens of beautiful "stars," as in pinpoints of light. Reminded me of countless evenings in the mountains spent admiring the spectacular night sky. All quite lovely.
Then I remembered I was inside a building and looking at media holes, not stars. That was the last time I ever took notice of a K&N filter.
Whether your ride is 1 year or 40 years old, whether it's a Pinto or a Porsche, stick to a name brand disposable cellulose or similar filter. They flow great and trap down to about 5 microns (per Premium Guard). Skip the voodoo snake oil contraptions.
Then I remembered I was inside a building and looking at media holes, not stars. That was the last time I ever took notice of a K&N filter.
Whether your ride is 1 year or 40 years old, whether it's a Pinto or a Porsche, stick to a name brand disposable cellulose or similar filter. They flow great and trap down to about 5 microns (per Premium Guard). Skip the voodoo snake oil contraptions.
