ok, today I jacked the car up and got underneath of it. I pushed on a few of the heat shields and the sound did not change. I have my Fiancee' rev the car and only when revving it does it make the noise.
I am wondering if I am getting that sound others have talked about with the ART pipes going through another stage. Up until now (800 miles on them) I have had NO sounds. I find it ironic that when I tighten them up that all of a sudden it would make this noise. It does sound like it could be the pipes... it also sounds like it might not be. Under normal idle or just cruising, the car does not make the noise at all. However, under load or when the revs come up it does make. It if it was a heat shield wouldn't it be more likely to do it all the time?
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