The best option for cheap is the Riff Raff Diesel 6637 filter kit, with the Donaldson blue filter. Riffraff Diesel 6637 Ford 7.3L Powerstroke Intake Filter Kit

 

I second this. You can get the upgraded and much more water resistant blue filter media and a filter sock. There may be better looking cold air intakes but the 6637 is a proven set up for a stock 7.3l for the cheap price vs $350+ for other kits.

 

@Corey@CNCFAB

 

Does anyone have any experience with magnum flow filters? I'm looking into it aswell. I am in Canada if that effects shipping or anything. https://www.tdotperformance.ca/afe-11-10012-magnumflow-oe-replacement-pro-dry-s-air-filter.html

 

unless you have a competition truck, dont waste your money unless you get the 6637 from @Corey@CNCFAB or you want to look cool under the hood.

Email him at sales@cncfab.us and get a quote to Canadia

 

is the magnum flow a viable option though?does it filter good or is it better just to go stock. I would like to stick to magnum flow because that's the best filter I have heard about apart from the one you guys are mentioning

 

To be clear here, do you want the best air filter or do you want us to just co-sign on the one you've decided you want to get?

 

well from what you guys have stated,the magnum flow is better if you want a competition truck or I'm geussing tune in general and me being young I'd what I'm going to do so if I'm doing it I may aswell get the best performance filter that also filters the best. Cold air intakes are a option as I stated. To be clear I WILL BE TUNING IT EVENTUALLY. Sorry for any clarification issues.

 

How reliable is riff raff diesel as a site? If I were to get the intake you guys are talking about is it quality shipping from that site? Will they ship to Canada?

 

Dont be sorry, if you are building a competition truck it wont be in a field full of dust hauling hay or driving around town so do you want to "flow" better or have the right filter to protect your turbo?
@CloverLeafFarms can bring the knowledge

 

That's where I'm stuck I want to do a mild tune but still want to be able to use it like a truck so hauling some hay and stuff so it will see dust mud and dirt but still have a tune.. I'm stuck between preformance and stock. Thanks for the help

 

cant have it all hero, plus... its an old 7.3, its not going to burn up the streets with out a LOT of money.

Throwing a cool looking filter and a tune at it wont change the world

 

would a stock filter do it then?mainly reliability wise?

 

Between all our farm 7.3s and the previous 7.3 I ran, there’s a combined 500k+ miles of 6637 filter miles.
No issues from water/snow/corn-soybean-hay-straw-gravel dust.
I ran one on my e99 all during my drag racing and sled pulling days too

I’m only talking from my personal experiences. Opinions will always vary.

 

thanks for your opinion!

 

Oakhill,

Riffraff has been an amazing site you won't have to worry about fraud. Clay has been fixing and selling parts for 7.3Ls for a long time and has a great reputation. Honestly the 6637 kit from riffraff is a great option. AFE air filters also sells the BHAF also available from riffraff or cncfab another awesome vendor on the forum.

I have never heard of magnum force ever until now. Not that they aren't good, but I would be cautious. A lot of shops throw a nice pricetag on made in china junk and you don't know until your turbo collapse the air filter. seen it a dozen times when people cheap out on an intake system with turbo chargers. The 6637 kit has been around for 20+years and is a PROOVEN set up no opinions.

A stock truck with even a 100hp performance tune will not stress the 6637 or BFAF filter on a old body style superduty (anything pre 1999 superduty style).


Many folks here on the forum take great pride in helping diesel owners avoid the fluff and choose the quality products to keep their trucks on the road. Do yourself a favor and skip the magnum filter and get any of the following:

1.6637 kit

2. 6637 kit with afe BHAF filter instead

3. 6637 kit with blue Donaldson brand 6637 (better water resistance and made with same material as the 03-07 6.0l diesels)

4. S&B kit (don't know if they make it for the pre 1999's though).


Again don't risk your trucks engine and all the headache and money with an unknown air intake system...

 

thanks for the information, does it matter that I'm in Canada or do they ship here to?

 

Yes, we ship to Canada all the time. Shipped some turbo parts to BC today.

Best filter on a budget= https://www.cncfab.us/shop/afe-power-air-filter-21-90058/ Why? Because its cleanable. Others are not. So $60 plus shipping and youll have to buy a second, so now you are already over the price of the one AFE 6637 style filter.

Best Cold air intake = https://www.cncfab.us/shop/s-b-filters-cold-air-intake-kit-94-97-7-3l-cleanable-filter-75-5027/ I've always liked the clean look of all of S&B's products. We move way more of them than any other brand.

 

thanks I will have to look at getting one in the near future

 

I use a big-truck Donaldson air filter that came with the Tymar kit. I plumbed a port for an air filter restriction gauge in the metal pipe just after the air filter, and the gauge tells me that the big filter is more than enough air flow for my 7.3. It shows virtually no vacuum / restriction when the big 444 is breathing hard up the hills.

I've never wanted a cover for the Donaldson, figuring it would just represent an (admittedly tiny) extra restriction and would not provide any usable extra filtration. Besides, one of the reasons I wanted the big Donaldson is that I could eyeball the paper element every time I opened the hood to check for filter collapse, water stains or filter breeches. A bare filter should reveal any and all.