Stainless Steel HPX 99-03

Part Number:
RDPHHPX

Manufacturer:

$64.13
$59.88
(You save $4.25 )

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.

install.jpg

 

HPx line comes with adapters, ready to install. 

Early 1999-2003 7.3 Powerstroke Does not fit all T4 style turbos.
Write a Review

427 Reviews Hide Reviews Show Reviews

  • 5
    Hpx crossover on my 00 ford f350

    Posted by Caleb on Jul 11th 2021

    Ive had it on my 00 7.3l for 3 days now and its a great product well built great fit, pretty simple install. I noticed the “7.3 clatter “ isnt as bad, runs smoother . Even talked my dad into getting one for his 01

  • 5
    Crossover Tube

    Posted by Pete on Jun 30th 2021

    First thing I noticed was my 7.3 Econoline idled smoother was much quieter and has slightly better acceleration. Also notice my fuel economy went up about 2 mi per gallon from 17 -19 mpg. The cost of the tube will pay for itself in saved fuel. And installation took about 40 minutes which was very easy.

  • 5
    Hpx

    Posted by Unknown on Jun 7th 2021

    Easy to install. Hopefully it doesn't leak anytime soon

  • 5
    Quality and functionality

    Posted by Shawn on Jun 2nd 2021

    First impressed by the fit up. Tubing bends, length where spot on and quality of material was excellent Trucks idle is noticeably quieter and smoother. Throttle response seems to be improved as well. Once again happy with RiffRaff products.

  • 5
    Must have

    Posted by stangjr on May 28th 2021

    Idle got smoother and a touch quieter.
    Checked my HPOP pressure before and after and it leveled out quite a bit. Before pressure would fluctuate up and down about 80psi. After no more than 5psi which on the scale of 500+ psi at idle thats pretty good.
    Super easy install; took me 10 minutes and didn't have to remove any intake piping.
    Literally used 2 wrenches.

  • 5
    Easy peasy

    Posted by Tyler L on May 19th 2021

    This is a great upgrade. Super easy/ high quality and inexpensive. What more to say.

  • 5
    Great!

    Posted by Michael on May 19th 2021

    Great little modification, could use a print out of torque specs.

  • 5
    Great product

    Posted by Gabe on May 15th 2021

    Another great part from riff Raff fits perfect took about an hour to install with the Y still in. Riff Raff continues to impress.

  • 5
    Surprising Results!

    Posted by Cameron on Apr 30th 2021

    I thought this thing was a bit of a gimmick, but I figured I'd give it a shot based on reviews across the internet, and WOW! This should have been a factory part from Ford as part of the 7.3l design! I immediately noticed not only better throttle response, but the engine was significantly quieter at idle, all the way to nearly 2k RPM! I do have a tiny leak from one of the compression fittings, but I can probably work it out by simply removing and re-installing it. Best $50 I've ever spent on my truck!