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
474 Reviews Hide Reviews Show Reviews
-
Easy install
Worked great. Easy install and the directions were clear.
-
Great product
Love this new filter, easy install and looks good when finished!
-
6637 Filter kit
The tube was a a little long. The filter was rubbing on the inside of the fender. I shortened it 1/2” & it was fine. Clamps were good quality.
-
6637 air intake
Sweet and simple air intake, better throttle response , just altogether feels better. I’ll post again after my exhaust and chip has been installed.
-
Air filter
Product came as advertised really let's my 7.3l breathe better and turbo lives thenew air flow. Is recommend this air filter kit for the 7.3l and 6.0l Ford diesel motors.
-
RIFFRAFF DIESEL 6637 FILTER KIT
I ordered this to replace the junk K&N. Glad I did. Way more comfortable having this beast on knowing that my intake will be clean. I really like the cover as well. The blue was a nice choice and touch for my engine. Thank you!
-
6637 Kit
Fit perfect! Only needed the sweep pipe for the early 99 7.3L. Bought the kit for extra filter and clamp.
-
Great value
Tight fit, but installs as expected. Engine revs more easily now.
-
6637 filter kit
Easy to install. Works great.
