Riffraff Diesel 6637 7.3L Intake Filter Kit
This kit contains:
- Riffraff Diesel 6637 Filter
- Optional AFe Big Boost washable, or a Donaldson Blue® Filters
- Custom "Riffraff Diesel" Pre-filter Cover (Optional $29)
- Powder Coated Adapter Tube
- 94-Early 99 Uses a 45* Mandrel Bent Tube
- Late 99-03 Uses a straight Tube
- SS T-Bolt Clamp
Late 1999-2003 Powerstroke production date 12-7-1998 and after
463 Reviews Hide Reviews Show Reviews
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6637 Filter Kit
Easy Peasy. Intstalled the whole kit and cleaned my captiain's side inner fender and valve cover in about 35 mins. Not all the increased intake sound everyone said it would make. But I know its a significant increase in air intake to the turbo -measured against the stock air box. If you don't think you can do it ... think again, because it's simple. Buy it now if you have the stock airbox on your 2000 7.3. Thanks Clay!!
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6637 air filter
Great filter, easy install even though I bought the bent pipe I was able to make it work in my truck. Definitely more air is getting pulled into the truck and you can definitely hear that turbo sing a lot better
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Best filter upgrade
This is the easiest upgrade any Powerstroke owner can do. Quality powder coated adapter and a filter than you can get your moneys worth out of. I’ve had plenty of dirty intake tubes with the factory air filter set up regardless of the brand of factory air filter. With the 6637 I’ve never seen dirt make it through. It’s by far one of my most recommended upgrade you should do to your 7.3!
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Very happy. Great product took 20 min to take old out and put in new. Highly recommend.
Thanks riff raff.
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Air filter kit
Kit was a solid 4 star. Could have been a 5 if there was a pedestal base engineered into the kit.
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Riffraff 6637 filter kit with AFE filter.
Very easy to install, I noticed better throttle response and turbo sound on a bone stock 7.3L also super fast shipping! Thank you Riffraff Diesel...
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Works great.
Had to either cut out or remove original air box to fit but the truck runs great and you can hear the turbo much better.
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6637 Filter Kit
I am satisfied with the kit I received from Riffraff. It was shipped and had it a week within me ordering it. I looked around and priced the filter, elbow and fitting itself. This kit is priced great and Riffraff makes it easy. I would recommend it to anyone looking.
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Great fit
The intake fit great, and arrived early! Defiantly made the truck wake up a little bit. I will definitely be ordering more parts from riffraff in the future.