HPX crossover
Hotshot
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
You could say they've been "ported." Joe's reasoning is why I haven't done the HPX already, it seems like its better left alone.
Elder User
Joined: Jun 2005
Posts: 567
Likes: 0
From: Albemarle, NC
I had the non braided version, and it only lasted maybe 6 months. I had an oil leak that I thought was the turbo o-rings, and after replacing those twice, I finally found a pin hole in the HPX hose. I removed, and will not be replacing. I didn't notice any improvement whatsoever. I was very disappointed. Running rotella syn, made the biggest difference in starting/idling quality.
Fleet Mechanic
Joined: Dec 2007
Posts: 1,766
Likes: 8
From: Hutchinson, KS
I've got the braided hose one from Tymar. Had it now for 6 months or so. No leaks but check it when I think of it.
I haven't really noticed any differences in operation either. Like Curtis, the romps at startup went down a little.
I think the HPX is a mod that some get noticable results and others don't. Kinda like the tank/pre-pump mods. I have seen NO change since doing them. Others have sworn it makes a HUGE difference, but I guess I didn't have the air leaks like them. It's nice to have the external filter though.
I haven't really noticed any differences in operation either. Like Curtis, the romps at startup went down a little.
I think the HPX is a mod that some get noticable results and others don't. Kinda like the tank/pre-pump mods. I have seen NO change since doing them. Others have sworn it makes a HUGE difference, but I guess I didn't have the air leaks like them. It's nice to have the external filter though.
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
Well, I WOULD do it again. I put the SS HPX on from ITP Diesel, and it got a little quieter, but the engine smoothed out quite a bit. When it was stock it would bounce around in the engine bay at idle, and now it barely wiggles at all. Good mod in my book, and only a minor inconvenience when pulling the turbo.
My $0.02...
My $0.02...
Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
I thought the HPX was mostly for WOT, so the #8 injector is not starving for oil psi. Thats why I put one on. 
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Fleet Mechanic
Joined: Dec 2007
Posts: 1,766
Likes: 8
From: Hutchinson, KS
I am in no way DIS-satisfied with mine. They're cheap enough, I'd put one in again.
Of the next Riffraff East
Joined: Oct 2004
Posts: 8,679
Likes: 2
From: Concord NC
Guess I will go with the minority here and say yes, I would do it again. I didn't see a major difference, but there was a difference for sure. Quieter idles, less knock. My wife even noted that on her first trip with it installed. I used the solid SS one from KCM and for the $45.00 buck I paid 3 years ago. Never a leak although I did replace the orings when I replaced the rest of the orings. I would steer clear of the flexible ones as many have had problems with them.
Post Fiend
Joined: Feb 2008
Posts: 10,977
Likes: 5
From: Lancaster, Pa.
Guess I will go with the minority here and say yes, I would do it again. I didn't see a major difference, but there was a difference for sure. Quieter idles, less knock. My wife even noted that on her first trip with it installed. I used the solid SS one from KCM and for the $45.00 buck I paid 3 years ago. Never a leak although I did replace the orings when I replaced the rest of the orings. I would steer clear of the flexible ones as many have had problems with them.
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
That's the first I've heard of that one -- I know it will equalize the two heads, and it definitely helped mine at idle. AFAIK, the #8 issue is a fuel problem, not a HP oil problem. But at WOT, it will also equalize HP oil pressure in the heads I guess, so who knows...
Posting Guru
Joined: Dec 2007
Posts: 2,290
Likes: 2
From: SEMO
I have the braided hose with 15000 on mine with no probs. so far.I like how smooth the eng.is when pulling my trailer on the highway.and I would do it again.
Just my .002 cents(were in a rescission)