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
473 Reviews Hide Reviews Show Reviews
-
Fiter
Nice Kit
-
6637 Intake Kit
Works well, flows much better than my stock air box.
-
Filter kit
Works great especially if you have a hole in your filter box. Install was quick and then I was ready to hit the road again. Thanks for the products and instructions you guys give to help me with my truck.
-
good
it fit with vary little adapting
-
6637 Filter Kit
Great upgrade over the stock box, and much better flow. I now have no smoke on acceleration,
-
6637 filter kit
Fit like a dream on my 1996 f250 7.3 desiel
-
Huge improvement.
Takes some cutting to get it to fit. At least doubles the size of the filter.
-
Intake Kit
Easy install, just removed the stock box and dropped this in. Way more air flow, you can really hear the turbo breathing now.
-
Seems to be well built
EGT’s drop a lot faster when at idle. Different then my old cold air intake so still learning EGT threshold while towing.
