6637 DIY Intake filter install/change - Ford Powerstroke Diesel Forum
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Old 04-05-2012, 03:13 PM
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6637 DIY Intake filter install/change

So I decided to do a quick write up on the 6637 DIY Intake. I have been seeing a lot of posts regarding this mod and I needed to change my filter anyway.

First you want to remove your stock airbox from the intake tube.



Next you will need a 4" 45 elbow. A muffler shop should have one, if not you should be able to pick one up online for $20 or so. Another option is using a 4" pvc street 45 elbow and a small piece of 4" pvc. I used an exhaust elbow. You will need to cut it almost in half to make it short enough and get the angle right.



You will also want tp pick up a nice "t" style clamp. I like this style of clamp because you can get it really tight. I used the stock hose style clamp on the intake pipe.

Clamped up...



Installed in the truck...





I really needed to replace mine....




Sent from my SPH-D710 using AutoGuide.com App
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Old 04-05-2012, 03:20 PM
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dang thats a dirty filter.
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Old 04-05-2012, 04:13 PM
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Quote:
Originally Posted by saltlake3fitty View Post
dang thats a dirty filter.
That's an understatement.
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Old 04-05-2012, 04:14 PM
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it almost looks as if it was lit on fire. lol
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Old 04-05-2012, 04:37 PM
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wow that filter was dirty. lol


and i did the same with the exhaust elbow


Last edited by NorcalPSD925; 06-21-2012 at 09:34 AM.
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Old 04-06-2012, 02:19 AM
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Quote:
Originally Posted by saltlake3fitty View Post
dang thats a dirty filter.

Yeah it is, it had been a long time sense it had been changed... I still have it, i'll try to get a pic of the inside of the filter, it looks as clean as the new filter.
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Old 04-06-2012, 02:30 AM
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Filter Products - equipment parts - Donaldson, Baldwin, Des-Case, Wilson, Ingersoll Rand - alternators, air & electrical starters, bag, engine & hydraulic filters, bearings

Cheapest place to buy filters that i have found....
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Old 04-06-2012, 05:46 PM
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You sure it needed replaced ! Lol, don't think i could ever let mine get that bad.
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Old 04-10-2012, 06:22 AM
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i have bought the filter, still trying to get time to do the mod. i have searched around on it but i dont remember seeing what to do with the 2 sensors (if i remember correct) that are on the current box....can you help with that. 94.5 PS
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Old 04-10-2012, 06:51 AM
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how exactly did you get the 4 inch exhaust elbow to fit on that rubber tube? i made a bevel and after about an hour of wrestling with it, i got the 4 inch piece of pvc i needed in there.... i feel like should have something not so rednecked thered though
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