The factory-installed intake plenums on the 7.3L Powerstroke, quite literally, fail under pressure. Whether you've got a stock truck or one that's been hopped up, the thin stamped steel factory-instal

Ready to get the most out of your 7.3? Our Max-Flow 4-Line Fuel Feed Kit removes the leak-prone fuel bowl and pressure regulator so you can get maximum fuel flow directly to your injectors.  An indust

The Banjo and Hutch (aka Hutch and Harpoon) mod were one of the first "budget" mods for the 7.3L Powerstroke. The Harpoon mod when done, allows for more complete fuel fill up's by removing a portion o

The Fuel Pressure Regulator “Blue Spring” Kit (AP0086) fixes a boring problem that becomes an expensive one: low fuel pressure on a 6.0L. This updated spring restores fuel pressure back toward where i

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 takes it's supply di

A 7.3 Powerstroke thermostat housing leak often starts small—coolant smell, dried residue near the upper hose, or a slow drip that usually only shows up after a heat cycle. On 1999–2003 7.3L trucks, a

If your 7.3 Powerstroke has ever done the turkey gobble / flutter thing under load, you’ve met compressor surge. In laymans terms, surge is teh turbo becoming innefficient/pushed too far for its desig

Injector cups are one of those 7.3 jobs where the tool matters as much as the parts. You’re working right over an open cylinder, and the old-school methods (big taps + slide hammers, or hammering cups

The factory 7.3 Powerstroke valve covers do their job, but they are still thin stamped covers on a 20+ year old truck. When sealing matters, rigidity matters. That’s why we built the Riffraff Diesel B

The 6637 filter modification (often called the BHAF – Big Honkin’ Air Filter) is the classic 7.3 Power Stroke intake upgrade: replace the restrictive stock airbox with a large, heavy-duty style cylind

Riffraff Diesel 99-03 GTP38 Rebuild Instructions Riffraff Diesel 99-03 GTP38 360 Rebuild Instructions  Riffraff Diesel 94-Early 99 Bellowed Up-pi

Fuel leaks on the 7.3 Powerstroke are one of those problems almost every owner will deal with sooner or later. While these trucks can seep fuel from a few different places, the fuel filter housing (fu

Let’s talk about Powdered Metal Rods, or PMR’s as they’re more commonly called. If there’s one thing that causes the most damage to the 7.3L Powerstroke in one shot, the PMR is it. When these connecti

The 7.3L Powerstroke ran long enough that people started treating all of them the same. That is how wrong parts get ordered. A 1996 OBS 7.3 and a 2002 Super Duty 7.3 share the same basic engine family

For 7.3’s and 6.0’s alike, the fuel system could benefit from an upgrade. One that removes the deadhead issue that plagues each engine. The fix will increase injector life, increase throttle response

Ford didn’t make it easy: on a 7.3 truck you’ll see multiple “PCM codes” that mean different things (hardware vs. software vs. emissions calibration). The trick is knowing where each code lives and wh

Contrary to popular belief, the 6.0L Powerstroke is a great engine! Once you work all the bugs out. If you're in the market for a new-to-you 6.0L Powerstroke, here's a list of what to look for when bu

The 7.3L Powerstroke diesel (1994–2003) is widely regarded as one of the most durable diesel truck engines ever produced. Known for its longevity, simplicity, and mechanical reliability, the 7.3 still

Full PDF Instructions can be downloaded here: https://www.riffraffdiesel.com/content/RESOURCES/Fuel%20Line%20SS%20Braided%20Hose%20Kit%20-%207.3L%2099-03.pdf Product Link: https://www.riffraffdiesel.

The 6.0L Powerstroke can tow extremely well, when it’s healthy. The problem is that towing exposes every weak link. Heat climbs, boost demand increases, fuel demand goes up, and the high-pressure oil