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Originally posted by b-rok
I have some of these headers and I must say, fitment--perfect, and the piping looks good on the inside. I could see where they filed edges and the weld to make for smoother air flow. The color change worried me a little, it changed to a yellowish goldish color, but it actually looks nice. As for the color change, I have done some tempering as part of my undergrad work w/ metal fabrication. As you heat -some- metals they change color/characteristics w/ the increase in temperatures. I thought that these changes only applied to other types of steel alloys but not to stainless, but after doing a little searching I found that there are a few types of stainless steel alloys that DO change into tempering colors as they heat up and the colors mean various things having to do w/ the molecular structure, and strength, and workablilty of the alloy. So, I conlude from this that just b/c they change color does not -necessarily- mean that it is not 100% stainless, it may just mean they use a different alley of stainless. Which I would imagine would be "cheaper" for a manufacturer to aquire, hence cheaper prices. Not saying anything does are doesn't use anything, just stating possiblilites. Don't mean to sound like a teacher, but I am. I also thought that this might be an area that not a whole lot of people know about so would give you guys a full explanation. Good day to you sirs, BP
Fuckin' Mr. Wizard you are Bruce..
FYI - I helped B-Rok install the headers and I'll be the first to say that fitament was a close to perfect as it gets.. Given, he did all of the tough stuff while I made sure the DP lined up w/ the cat but all in all, it took us what, 40 mins at most to install them? I haven't seen them since they turned the bling bling gold but I can't imagine those headers looking *bad*.
B-RoK, Now you jes need ta git yer teef gold capped to match tha headers.. fa sheezy..
-JP
1991 TSi AWD
"Not a sermon, just a thought."
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