This truck has a K&N air filter, and recently I've read some not so good posts on them. What is everyone's take on these filters? And more importantly, what other options do I have?

they suck..... just get a good paper filter... K&N filters by them selves are a joke..

mnccnm said:

This truck has a K&N air filter, and recently I've read some not so good posts on them. What is everyone's take on these filters? And more importantly, what other options do I have?

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Airaid is the best. Never heard of any problems with their filters.

I do not care for the oiled junk. I use a good paper filter such as Motorcraft or Amsoil. I doubt any noticeable gains between the two types of filters.

Dirky said:

I do not care for the oiled junk. I use a good paper filter such as Motorcraft or Amsoil. I doubt any noticeable gains between the two types of filters.

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Airaid has just come out with a oil-less element. I guess it comes down to looks under the hood too.

I run motorcraft filters. The K&N is not really a performance booster.

Ryan

I like the fact that you can just blow them out and put the filter back in without having to keep buying new ones.

If they provided so much extra horsepower, how much would they add if you just left it out?

The drop in K&N filter has a tendency to leak with the stock airbox if its not sealed right. I would buy a 6637 filter or a AFE Big Boost filter, there both the same size (HUGE) but the 6637 is paper and the AFE is a washable filter. The AFE flows 850cfm. I installed the AFE on mine and you can really hear that turbo whistle. Check out riffraffdiesel.com for them.

AFE or Wix/napa (6637). Ither of the 2 are great.

Do not use an oiled filter-- they're a complete scam. It is possible that it can flow more air but at the cost of allowing larger particulate through the filter media. Think about it-- same amount of filter media surface area and yet it can flow more air? Something has to give.

You'll get better filtration out of a dry paper filter. If you're running ungodly amounts of power and you really need the extra CFM then you can start looking at really fancy filters, but even then I don't think K&N is your best bet.

My brother (who researches the hell out of everything) used to swear his Tymar intake system with Donaldson filters for his 7.3L. This seems to be a popular setup with the diesel crowd.