2000 f250 intake questions - Ford Powerstroke Diesel Forum

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post #1 of 14 Old 07-04-2013, 05:40 AM Thread Starter
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2000 f250 intake questions

I'm new to the forum and have searched and haven't really been able to find what I'm hunting for. I just purchased a 2000 f250, it has a k&n air filter (which I heard is awful for these trucks). So I'm wanting to switch it out asap.my first question is why are the k&n air filter bad for these trucks. We've had good luck with them in out n/a vehicles but, turbo diesels seem to be a whole other ball game. I've been researching the Napa filter kit and am wondering if there are any long term effects it has on the truck, or has anyone had any bad luck with them.

I know there maybe a thread on this but after hunting and hunting I couldn't find it. If anyone knows if there's a thread for it just post the link.kcco
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post #2 of 14 Old 07-04-2013, 06:09 AM
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Search 6637, that is the napa filter that everyone runs

2000 F250 XcabSB, 4x4, 4" strait pipe, DIY intake, FRx, BDP tunes, WW2, 6.0 cooler, BTS VB, gauges, 55w digital projector HIDs
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post #3 of 14 Old 07-04-2013, 10:07 AM
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k and n filter just let to much dust through on these trucks.
basically sandblasts your turbo and can affect cylinders/compression over a long time.

6637 filters extremely well and will have no adverse affects.

rifrraff sells a 6637 kit for like 80 bucks.

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post #4 of 14 Old 07-04-2013, 11:49 AM
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I'm going to order a WIX 6637. People say good things about 'em.

--Uriah--
2001 F350 XLT (POWER SEATS!!) 7.3 PSD ECLB SRW automatic, 153,000(ish)
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post #5 of 14 Old 07-04-2013, 04:55 PM Thread Starter
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Talking

Good deal! Sounds like I'll be switching to the Napa filter. Anyone want to buy a k&n filter thanks for the replies. Glad I found this out sooner rather than later.
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post #6 of 14 Old 07-04-2013, 08:25 PM
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I had a negative experience. Heres a writeup I did last year: The Truth About K&N Intakes

All wasnt lost though. I kept the intake and like recommended above, applied the 6637 in place of their filter. It was a perfect fit. Its been running clean and I've been carefree ever since.


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post #7 of 14 Old 07-05-2013, 06:27 AM
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Another vote for the 6637... quick cheap and very effective. First mod I do to a 7.3.

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post #8 of 14 Old 07-12-2013, 05:50 PM
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I'm also new to the 7.3 and waiting for my new 2002 f250. The truck has an K&N air system in it. Is is better to go with the AIS system or do the 6637? Is it a quick mod?
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post #9 of 14 Old 07-12-2013, 07:15 PM
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Quote:
Originally Posted by mcguirehg View Post
I'm also new to the 7.3 and waiting for my new 2002 f250. The truck has an K&N air system in it. Is is better to go with the AIS system or do the 6637? Is it a quick mod?
Depends on your goals and budget. Ais is the best you can get if staying below 400hp. 6637 is good and budget friendly. Some do not like the draon created from the 6637. Not exactly sure what they mean exactly, it must not bother me cause I do not hear a drone sound.

Either route is good.

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post #10 of 14 Old 07-13-2013, 04:03 AM
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I just order my 6637 filter kit from riffraff diesel for $105 with shipping. Even comes with a cover for really dusty environments.
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