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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Just try it! The data is correct!
If you have a choppy idle when hot give this a try. My truck only had 120k when I installed this but I was chasing an engine idle hiccup at hot idle. I’ve replaced ICP, CPS IPR and bigger injectors, Still there. With forescan I was seeing around 100psi injector pressure fluctuation at hot idle. After installation I’m seeing around half that psi fluctuation BUT much more stable pressure! (Holding around 600psi). Install was super easy and you don’t even need to take anything apart with the right swivel sockets.
I also have new Riff raff banjo bolts, fuel and return lines to eliminate the deadhead system too. Can’t wait to try those! -
Hpop crossover line
Fit perfectly didn have to fight with it like the flex hoses sealed nicely no leaks
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stainless steel hpx 99 03
Fit Was Perfect. My Ipw Numbers on insight were running a tighter pattern
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Stainless Steel HPX
I’ll do a review for all three things that I just bought and installed at the same time. I bought the stainless steel HPX, the FRX, and the Riffraff CPS with longevity for my truck in mind. I thought my truck ran great before install of these three mods. After installation, it was quite the noticeable change as these three mods made my truck start a little quicker, idle smoother, quieter in the cab while driving, better acceleration like my truck was receiving more fuel upon acceleration(ZF6 transmission). Took my wife for a ride and she noted how much quieter it was in the cab while driving! Overall, installation was not bad. Very happy with how these improved an already good running truck!
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HPX
Might just be placebo, but it seems like it quieted and smoothed the engine out.
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Oil line
Easy install!
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HPX
Great product
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Does not work on E99s
Tried installing this on my E99 when I put on my new KC turbo for it (also purchased at Riff Raff). The part is so close to the compressor outlet and spyder pipe that there isn't enough clearance to mate the two parts together or get the clamp between this line and the spyder.. I think this part should work fine for L99-03 because the turbo is about an inch higher than the E99 which should give it the clearance it needs. I'm going to use a flex line on my E99 to get past the clearance issues.
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HPX 99-03 7.3l
Excellent easy to fit product, works great.
