Winter is right around the corner. For us 6.0 and 7.3 owners, cold weather affects our engines more than any other modern era light duty diesel engine. The 6.0 and 7.3 are both tough as nails, but col … read more

If you own a 1994–2000 7.3L Powerstroke, you’re likely missing the benefit of the low-pressure oil mesh screen found on later 2001–2003 models. Most don't understand that the HPOP ta … 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

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

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