K&N Air Filter - Now Available

[Dean]

Fully agree Cmar, The solution is a large paper filter, and I think the manufacturers have taken that approach. Change the stock paper filter on the schedule and all is good.

I am really against using a K&N on a turbo'd direct injected engine.

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[Cmar]

The only thing I can't figure out is the trend towards flat panel filters, I guess they are easier to make, but they're harder to get a good seal on, than a round filter with gaskets top and bottom. Also my Ranger - 2015 model, uses a round filter in a round casing, which is shaped in a kind of vortex which tends to spin the incoming air all around the filter to help stop it loading up in one spot. Later models used the flat panel type.

 

[Dean]

You keep comparing Australian Apples with US Oranges!

I have not found it to be the case of flat panel air filters having a bad seal.
This is even applicable to my 1988 Scorpio.

 

[Cmar]

You keep comparing Australian Apples with US Oranges!

I have not found it to be the case of flat panel air filters having a bad seal.
This is even applicable to my 1988 Scorpio.

Perhaps, not a proper comparison, but over here Rangers were released with both round (3.2 diesel) and flat (2.0 diesel and 3.0 V6 diesel) filter units which look identical to the Ecoboost ones on your cars, and you make a valid point, but Toyota had a problem of their flat panel filter sealing correctly over here.

https://www.project200.com.au/filter-testing/
https://www.whichcar.com.au/news/toyota-air-intake-system-fault-a-closer-look

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