Stainless Steel HPX for Ford 7.3L 99-03
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 the flow to the opposite head, the issue of pressure spikes are less.
HPx line comes with adapters, ready to install.
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Hpx
Easy install and fast shipping. And it did help quite down the engine noise. Recommend this product.
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Oil crossover pipe
Great fit and finish
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HPX line
Riffraff is an easy company to deal with. As advertised - easy to install, appears to be high quality fittings and pipe. Not sure if engine noise level really changed but others have stated they had noticeable difference. '02 F-250 w/62k (original owner) miles.
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Hpx crossover
A very simple install and combined with the Frx crossover my idle is noticeably quieter/smoother.
Highly recommend both! -
Hpx
A must have! I installed on my dad e99 and it made it much quieter. So I bought one one and installed it on my 02. Drove about 20 miles and it was leaking pretty bad. Tightened it down and hasnt leaked a drop
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HPOP crossover line
Installed at the same time as the fuel line crossover so I don’t know which made the difference. I recently install new Garrett GTPR Turbo and the installation of these 2 crossovers gave my SOTP Dyno as much satisfaction as I got from the Turbo installation.
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perfect fit
couldn't have been easier to install
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Worth Every Penny
Installed this on my 2002 7.3l and noticed a huge difference in noise. Easy to install and leaves a clean set up worth showing off.
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SS HPX
I have a 2000 F250 with 7.3L I have an Edge tuner with digital rpm display so i could see the rpms bouncing all over when stopped. It is amazing how much the HPX smooths out the engine instantly..
I bought one for my 2000 F650 too, it fits and works great. You can instantly tell the engine loves this thing. Great product for cheap and very easy install, took about 20 minutes while drinking coffee
