Riffraff Diesel 6637 Filter Kit

Part Number:
RDP6637

Manufacturer:

$89.00
(468 reviews) Write a Review
99.5-03 Donaldson White 6637 Filter Kit

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

install.jpg

1994-Early 1999 Powerstroke production date 12-7-1998 and before
Late 1999-2003 Powerstroke production date 12-7-1998 and after
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  • 5
    Awesome

    Posted by Jeremy B. on Apr 11th 2021

    It's exactly whata described and its an amazing fit, makes the truck sound better too. You can hear that turbo more and the wastegate!

  • 5
    Great product

    Posted by Aaron on Apr 11th 2021

    Recieved it fast, went in quick and easy, looks great and the turbo is much louder now. Awesome addition.

  • 5
    RIFFRAFF DIESEL 6637 FILTER KIT

    Posted by Doug on Mar 31st 2021

    Great quality and fitment. Will be back again for more.

  • 5
    6637 kit with Blue filter

    Posted by allen beauvais on Mar 30th 2021

    Great Kit! I can't believe how much more I can hear my turbo. This is a must have if you have upgraded your turbo wheel and are still using the stock box. Boost spools is much better and EGT down a pretty noticeable amount!

  • 5
    6337 kit

    Posted by Nick on Mar 28th 2021

    Works great. Bought the optional v10 battery tray to help with cleaning it up and fitting the filter better. Didn't notice a sound difference except for shifts. As I did not want it louder in cab. Notice a small performance gain as of 1 week pulling a 16 ft enclosed trailer. Will be back for more riff raff for my 7.3

  • 5
    Great Product!

    Posted by Tommy on Mar 21st 2021

    Looks great, fits great!

  • 5
    RIFFRAFF DIESEL 6637 FILTER KIT

    Posted by Ian on Mar 17th 2021

    I am really enjoying the RIFFRAFF DIESEL 6637 FILTER KIT.
    I can feel a small performance boost and definitely hear the turbo whistle more.

  • 5
    Perfect

    Posted by Jazmine Reann on Mar 16th 2021

    Took longer to remove the stock air cleaner than installing this kit. Fit perfectly

  • 5
    Install

    Posted by Scott on Mar 13th 2021

    Install was super easy. I had to order a 45 degree elbow to make it fit with out putting pressure on any other under the hood component.