Has anyone bought a set? I was going to get a set, the first prototype, just with an inferior material than what Rob is using now. I was going to do 3 dyno pulls. As my car is right now, mods in sig. Another after the headers were installed. Then add the exhaust parts I had researched and purchased for the V6 motors and their particular issues. I was using the stock down pipes, need to keep it legal. replace the rear cats with a magnaflow with the internal x-pipe, empty that into a "Y" pipe and use 3" piping, deleting the resonator, and emptying through a Borla Pro XS muffler. The Borla and the Hooker mufflers do not drone but I am not sure the hookers are still available. In my discussions with Rob I felt it would not be likely to find a stock vehicle to test on as almost all of us have modded in some manner. Take as many dyno pulls with ALL mods fully listed and then most could find the mods closest to theirs to compare to.
I have not heard of anyone testing these so far. Am I missing somebody who is in the middle of testing a set on their car? The one thing I saw before the headers were mentioned was the fact that the cars with quality exhaust components did not gain much with the cutouts in Rob's downpipes opened up showing that a good, well thought out exhaust does the best for power. My how was for guys running "x" amount of additional boost from stock would gain the most. Stock boost is 14psi, stack and run 21psi and that is a 50% increase in exhaust gasses to have removed. Rob gave additional potential flow based upon the size of the runners to be in the 4x% range, perfect for the guys at 21psi and higher and of course they should help the guys who are close to stock too! Anyone have a set or getting one in the near future? Thanks

 

Its all here;


https://www.crossfireforum.org/forum...w-headers.html

 

I'm not a spoke's person for Rob. But his first header set shouldn't be referred to as inferior. His second set could be referred to as over kill. The difference being,first set was constructed of rustless 304 stainless steel. The second set which he now sells is constructed of 321 stainless steel. 321 stainless steel being easier to shape with the added mixture of titanium. No hammer and pliers were used for shapping in the back yard. Formed from Rob's spec's by an Aircraft Company's percision equipment. Then Rob back purge welded them up to elimate weld slag inside his headers. Squirrel Crusher

 

I meant inferior as regards to the material used and the fact Rob was able to remove 2 welds making for a smoother header. Rob's workmanship is second to none. He offered me a choice between the original set and the new material set. I had been in contact with Rob throughout the process of the change.

 

"Inferior" was a poor choice of wording. According to Rob the original material had a price increase and the new material made it possible for 2 less welds to be needed. Rob took the time to explain it to me as I was going to do dyno testing with the headers. That would require the car being strapped down 3 separate times. As it now sits, with just the headers added and finally with the complete exhaust system installed, which I have already purchased.
Rob found the new material to be more cost effective and less welds is always 2 less places for leake to develop. All is well between Rob and I so if I offended anyone I apologize. This should be worked out between the parties involved as they have been between Rob and I, not aired out in a forum Peace brothers! Sweet