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
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.
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HPX LINE AND FITTINGS
Follow the instructions and torque the fittings so you don’t over compress the o rings. May be my imagination but I do think the idle is a little smoother.
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Quality
This is very well made(like everything riff raff has). Install was a breeze and made a noticable difference to me in the smoothness of the engine.
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SS HPX 99-03
Excellent product; easy to install; makes the engine purr…!
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Oil cross over
Very satisfied. Runs smoother, better acceleration
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Cross over
Great product but the cost of shipping to Australia $56 item to $204 is extreme was going to purchase kc 300 turbo, not any more
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HPx
Installation is a cinch makes a noticeable difference in the higher pitch "cackle". Super easy totally worth it!
