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Old Jun 24, 2012 | 10:48 AM
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togobefastguy
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I believe he is talking about the k&N filter in the stock box.
 
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Old Jun 24, 2012 | 11:06 AM
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fordtruck661
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Originally Posted by JMalmy21..00/7.3
The 6637 and the existing intake tubing is a bad combo??
Well what filter do you have? you switched from saying you were putting in a K&N filter into the stock air box and now are saying you are putting in a 6637. The K&N are known for not being all that good. The 6637 is a good choice (what I and many have in their trucks)
 
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Old Jun 24, 2012 | 12:23 PM
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The previous owner put the K&N filter In tge stock box. Today I'm replacing that w the 6637 and putting on my exhaust.
 
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Old Jun 24, 2012 | 12:46 PM
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fordtruck661
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Originally Posted by JMalmy21..00/7.3
The previous owner put the K&N filter In tge stock box. Today I'm replacing that w the 6637 and putting on my exhaust.
Ok if you need instructions on how to do it here is the link http://www.riffraffdiesel.com/mm5/RE...structions.pdf
 
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