Stainless Steel HPX 99-03

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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 and allow for a smoother idle. 


Early 1999-2003 7.3 Powerstroke Does not fit all T4 style turbos.
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  • 5
    Exelent quality

    Posted by Peter on Oct 16th 2018

    Installed the HPx line on a 2000 F-250 Super Duty and I find the engine sounds more balanced and a bit quieter.

  • 3
    Stainless steel HPX

    Posted by DieselDog on Oct 1st 2018

    Installed this a couple weeks ago in my 2000 7.3 and went in easy. Unfortunately, haven’t noticed any change in the sound like I was hoping for but I’d still do it just for the potential savings of my injectors.

  • 5
    Great cheap mod

    Posted by Unknown on Sep 11th 2018

    I am thoroughly impressed with the fit and quality of the part, helped my idle as stated, and seems to have better throttle response as well.

  • 5
    Quiet Idle!

    Posted by Mike on Sep 6th 2018

    Made my Early 99 7.3L nice and quiet at idle, even my wife noticed it. Better off idle response as well.

  • 5
    Very Nice Improvement

    Posted by Unknown on Aug 29th 2018

    Easy enough install and quieter motor.

  • 5
    fits great

    Posted by Unknown on Aug 21st 2018

    Great quality

  • 5
    Oil crossover

    Posted by Brendon on Aug 20th 2018

    Very easy to install fits perfectly.
    Straight away noticed smoother and quieter at idle . Even cruising on hwy noticeably quieter very good quality product that works .Thanks riffraff.

  • 5
    Great Quality

    Posted by Unknown on Aug 13th 2018

    Excellent quality on this...

  • 5
    Should have done it long ago

    Posted by JoeC on Aug 7th 2018

    Great product for the money and smoother idle

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