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Seafoam treatment - smoke in a weird place? Exhaust leak?

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So I did the seafoam treatment and it worked really well. However while letting the stuff smoke and blow out of the car there was a continuous stream of smoke from someplace along the firewall - I'm assuming it was off the rear bank of cylinders. Is this normal? It smoked like crazy out the tailpipe which I expected. Is it possible there is an exhaust leak someplace? I'm positive I didn't drip anything down there either.


My exhause is completely stock and to my knowledge has never been disconnected (no turbos replaced etc..).


Thoughts? Thanks in advance...

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