I bought from tuningpros in California, but I can't knock them. Their service was great, shipping immediate, price best, and they communicate. I think all of these headers shown in this price range are identical from one source, and there is a quality control issue. The only thing I think a vendor should do is make sure the product is ready to ship by looking at things like the holes etc. I sent a note to tuningpros to advise them of this issue.
Meanwhile the car runs fantastic, a dramtic improvement. But it also runs a bit hotter which I expected. It seems to me with the O2 sensors reading higher hydrocarbons ala no cats, the mixture will be more lean, and that will drive up the temperature. I have no science to back this up, just trying to figure out what the computer is doing.
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