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
475 Reviews Hide Reviews Show Reviews
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Great filter
Easy to install great quality on the adapter and clamp. This was a nice alternative to replacing my broken stock filter box. Definitely an improvement in air flow.
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great filter upgrade
great product and looks good under the hood. way better than stock and small increase in fuel mileage. very easy install.
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Great Results Easy Install
Easy to install, great instructions, instant improvement in air flow.
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Dope as f*ck
It's good shit buy it
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CONVENIENT
Only mod done to truck so far but can already tell a slight difference. Was so convenient getting everything I needed at once from Riffraff. All together this was a great transaction and looking forward to doing more business with Clay.
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TRUCK IS BREATHING
Product fit well, and came with everything stated. Was very well packaged and would recommend this to anybody with a 7.3 powerstroke. Love the product and shipping/customer service was top notch.
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My Truck is Alive
Quick throttle response opened up the engine, should have done this a long time ago.
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6637 FILTER AND COVER
easy install great performance results
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Great product
Simple to install. Not too expensive. Performance benefits are great. Glad to have it installed!
