Riffraff Diesel Technical Knowledge Center

S&B OBS 7.3 Powerstroke Cold Air Intake Kit 94–97

S&B OBS 7.3 Powerstroke Cold Air Intake Kit 94–97

Jun 17th 2026

The factory 1994–1997 OBS 7.3 Powerstroke intake gets the job done, but it is not exactly known for airflow. The S&B OBS 7.3 Powerstroke Cold Air Intake Kit gives the truck a cleaner, less r … read more
Why Powerstroke Owners Upgrade to Head Studs

Why Powerstroke Owners Upgrade to Head Studs

Posted by Adam Blattenberg on May 7th 2026

ARP head studs are one of the most common reliability upgrades for Ford Powerstroke diesel engines because they increase cylinder head clamping force. More clamping force helps keep the head gasket se … read more
KC300X G3 Stage 1 Turbo for 1999-2003 7.3 Powerstroke

KC300X G3 Stage 1 Turbo for 1999-2003 7.3 Powerstroke

Apr 17th 2026

If you’ve got a 1999-2003 7.3 Powerstroke and you want a true drop-in turbo upgrade that spools quick and supports real injector growth, the KC Turbo KC300X Gen 3 Stage 1 turbocharger is built f … read more