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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Great
This didn’t even take 5 mins to install. Easy, quick, and done. Will buy from here again.
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Fast shipping, good price, proven product.
Fast shipping, easy to install.
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6637 Cold Air Intake Kit
This Cold Air Intake Filter Kit certainly improved the intake flow and was very easy to install. I got the kit with the blue filter and everything fit together as expected without any issues.
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Best easy modification
... I can do to my 7.3 power stroke. Riffraff makes it easy with their kit. Best investment ever.
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Easy Fit.
Took more time getting the stock unit off than putting this one on!
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Big boost filter kit
I read all the other reviews about them says it wakes the motor up and that you can hear and feel and different and you sure can. All I have done to my truck is a 4inch striaght and a 25 hp tuner and this intake woke them truck up like I unhook another load. I would recommend if you like the noise in the cab, if you don’t want to listen to turbo noise then get the 6637 filter.
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The quality is very nice and it was well packed and easy to install.
Thanks for a great product. I will be ordering from you guys again.
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connection pipe
Would be a nice option to have a hole in the connection pipe for the air restriction gauge.
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great
seems to work fine
