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)
- Filter Adapter Tube
- 94-Early 99 Uses a 45* Tube
- Late 99-03 Uses a straight Tube
- SS T-Bolt Clamp
Late 1999-2003 Powerstroke production date 12-7-1998 and after
468 Reviews Hide Reviews Show Reviews
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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
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Best filter on the market
I would recommend this 100%. Easy installation probably took about 30 minutes at the most. Well done Riff Raff!
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6637 filter
Great fitment easy installation best airflow for the money
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Filter kit
I got the blue version as well as the new battery tray and filter bracket. The bracket is still on the bench as I have not gone to the hardware store for fasteners and washers. The entire instillation of the kit and battery tray without the bracket took about one hour as I used some of the time to do some cleaning as well. Easy kit and the truck does seem to run better with it. Also no more cracked filter box.....
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Quality Product
Came with everything I needed to install the kit and is a very nice quality part, would highly recommend to anyone interested in installing an aftermarket air filter.