Stainless Steel HPX - Ford 7.3L Powerstroke (94-97)
The Stainless Steel High Pressure Crossover is meant to allow excess oil pressure to flow between both heads allowing for better supply to the injectors. By allowing the oil to flow to the opposite head, the issue of pressure spikes are less and allow for a smoother idle. We manufacture our own SS HPX lines right here in the USA unlike many companies today that outsource their product lines.

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Eagle Point, OR
Wow what a great product took me bout and hour but ibut I wasn't in a hurry and I was cleaning stuff but it cleaned up the idle some and gave the ol 97 OBS some better throttle responce. Thanks clay great product
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Quiet!!
Installed these along with the Banjo bolts. First test drive I noticed much better low end throttle response, engine is quieter, and increased driveability. Fast install, have to be cautious of cross threading the b nuts
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Great product
I bought this for my 1996 f350. It went in smoothly and works great. I've noticed shorter start up times, smoother idle and less engine noise in general
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Hpx
Great product from a great company, I have bought everything thats on my OBS from here and will continue to do so!
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Hpx
Overall was a good purchase for troubleshooting purposes. Definitely smooths out idle. Only issue was getting the line to couple with the fittings during install. A little bit of manhandling and it fitted right up.
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Killer
Would recommend this to any 7.3 owner runs smoother and quieter!!
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Awesome product!
Fit was great! Quieted down the engine and it feels loke it gets up and goes better. Faster turning over when starting. Love it.
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Awesome cheap upgrade.
The fit is good. However I was under the impression that i had to use both of the third ports but i only had to use one of them. I DID NOT HAVE TO MOVE THE LINE ON THE DRIVERS SIDE. If I would have then the line would not work. My truck seems to run a little smoother, it seems to accelerate faster, and it turns over faster when you start it. Great investment. I am now waiting for my chip to come and see how it rins after that. I have a 97 powerstroke.
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Great upgrade
What sold me on this upgrade was the great reviews that it is getting and the great quality products Riffraff sells. I put the stainless line on at the same time I put new Riffraff turbo boots on. Great installation and I can notice the difference in how my 96 idles and goes down the road.






