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Unread 07-27-2018, 08:08 PM   #3
Rich Z
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Join Date: Mar 2006
Location: Crawfordville, FL
Posts: 15,123
Name : Rich Zuchowski
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Andy,

Those are aftermarket exhaust pipes that came with my rear mounted STS turbos. Both tips are open with one pipe welded onto the main pipe that attaches to the exhaust of the hot side of the turbo.

In the FLIR image you can actually see that all four exhaust extractor pipes attached to the exhaust pipe tips are hot from the exhaust gases coming out of them. But not sure why two of the four would be hotter than the other two. I guess it could be that the gasses take the path of least resistance which would be the pipe tips without the sharp bend to the outside world. So the two inside tailpipe tips (at the centerline of the back of the vehicle) are actually the straighter paths from the turbo exhaust side.

I've had to clean dark exhaust crap from all four of the tips, so they are all open for exhaust gasses from the output of the turbos. And I painted those pipes, and sprayed paint down the insides of both parts of the exhaust tips.

I've attached a pic taken from the underside of the car out the back so you can see what they look like from that angle.
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