QTP HV Merge Header LEAKING BAD
"You just don't understand, you just don't get it, you need to go to a "real" shop and let them explain it to you".
While that works well for them to deflect the issue one on one, its much more difficult to tell a couple of hundred people watching a thread the same thing.
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We should all have an online petition...............to get qtp to fixed there headers!
That is a chicken-**** reply QTP gave you
I have QTPs as well, but no leaks knock on wood. Had I known about their lousy customer service I would have bought kooks or ARH longtubes. The fact that they have not shown up in this thread to address these issues speaks volumes about their character, or lack thereof
I have QTPs as well, but no leaks knock on wood. Had I known about their lousy customer service I would have bought kooks or ARH longtubes. The fact that they have not shown up in this thread to address these issues speaks volumes about their character, or lack thereof For me, they can't and won't fully recover from this. Sounds like they don't know how to treat their customers. After hearing all of this about them, I'll go with ARH or Kooks.

When you pay a premium for headers made from quality steel, you should receive premium customer support (and they should fix their welds).
Thanks to all of you for posting this, otherwise I would have given them my money.
manifold patching compound. All you have to do is clean it well with carb cleaner or some such chemical, then pack it with this stuff using an acid brush or popsicle stick stuffing it into the voids. It has worked for me so far, but I'm ordering the ARH header system as we speak!
Problem is they swege it to 0.035-0.040" per side/oversize slop fit and it has a hell of a leaking gap.
manifold patching compound. All you have to do is clean it well with carb cleaner or some such chemical, then pack it with this stuff using an acid brush or popsicle stick stuffing it into the voids. It has worked for me so far, but I'm ordering the ARH header system as we speak!
The way the headers are fabricated is three tubes are placed into the collector and welded all the way around each tube. The last one is to be a "slip" fit, the smaller primary tube just small enough to place/fit into the collector. Its welded from the outside but the face of the tube inside next to the other three tubes is nearly impossible to weld. If they had quality control enough to keep the gap at 0.001" or so as it should be, there'd be no leak to tell of or need for a weld.
Problem is they swege it to 0.035-0.040" per side/oversize slop fit and it has a hell of a leaking gap.
exactly. if they kept the gap to a min the slip fit wouldnt be a big deal. and for anyone just chiming in on the subject, there have been countless threds on this topic already. this isnt anything too new.






no leaks on the merge though 