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Duramax Fifth Generation: 2011-2016 (LML) Discuss the fifth generation (2011-2016) of the 6.6L Duramax diesel engine & associated components. Engine related discussion ONLY.

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Old 05-02-2016, 01:54 PM   #1 (permalink)
Serpexc
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Best replacement air filter?

I am looking for the best replacement air filter for my 13 LML. I thought about a cold air intake, but it's dusty around here and we end up off road a lot, so a K&N or other gauze filter seems like a bad choice.

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Old 05-02-2016, 02:09 PM   #2 (permalink)
Diesel Wanna Be
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Stock.

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Old 05-02-2016, 11:59 PM   #3 (permalink)
Ron Nielson
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Quote:
Originally Posted by Serpexc View Post
.... a K&N or other gauze filter seems like a bad choice.
Definitely a bad choice. The stock filters are really hard to beat.
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Old 05-03-2016, 02:04 AM   #4 (permalink)
ktmrfs
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every test I've seen shows the stock filter is much more efficient at trapping dirt, trapping smaller sized particles and longer lasting than anything else. All you give up is a very slight increase in pressure drop.

So..... I just go with stock.
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Old 05-03-2016, 02:12 PM   #5 (permalink)
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In fact, this is the best price I've found on filters online:

Air: FleetFilter Secure Store - Wix, Fram, Baldwin, Luberfiner
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Old 05-03-2016, 07:03 PM   #6 (permalink)
IdahoSteve
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Hands down a STOCK filter.
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Old 05-03-2016, 08:03 PM   #7 (permalink)
LBZjunkie
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If you want another opinion, OE.
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Old 05-03-2016, 08:12 PM   #8 (permalink)
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Stock is the best....
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Old 05-03-2016, 10:14 PM   #9 (permalink)
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I forget the name of the best one, but it rhymes with "shock" ;-)
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Old 05-05-2016, 03:34 PM   #10 (permalink)
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I read a test done by an independent lab that the best filter was the OEM.
I will try to find it and post it here.
K&N definitely not a good idea.

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