Removing and reinstalling the HPOP on the 7.3L Powerstroke can cause headaches for many. The mounting bolts are threaded into the aluminum front cover, and well, the threads aren’t exactly the s … read more

Full PDF Instructions can be downloaded here: https://www.riffraffdiesel.com/content/RESOURCES/Riffraff_PDF_Plenum_Inserts_Instructions.pdf Product Links: 1994- Early 1999: https://www.riffraffdiesel. … read more

Our Patented Injector Cup/Sleeve Tool Set for the Ford 7.3L Powerstroke Diesel is the result of 12 years of refinement by 7.3L enthusiasts. 12 years of testing and tweaking until it was absolutely per … read more

The HEUI system on the 7.3L Powerstroke uses high-pressure oil for the fuel injection event. We won’t fully go into the system’s specifics here, but good clean oil is very important to its … read more

Upgrade your 7.3L truck’s crankcase ventilation system with the Riffraff Diesel Billet Doghouse CCV Cover (94–03). Machined from 6061-T6 billet aluminum and anodized for durability, this c … read more