Exhaust vacuum lines/nipple gone on newer S4's?
04-27-2004, 04:09 PM
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Exhaust vacuum lines/nipple gone on newer S4's?
Can anyone else confirm that Audi has now stopped sending S4's to the States with the Exhaust Vacuum Flap closing system. I looked at my exhaust system (VIN #231XXX) and can find no nipple or vacuum line on either muffler/exhaust.
04-27-2004, 04:54 PM
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Re: Look at where your exhaust tip leads into... it should split into a Y and you see the vacuum thi
Nothing "above and in between where the Y is" on mine, except a some sloppy weld splatter. It looks like the place you describe has been welded over.
04-27-2004, 04:56 PM
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Re: Now that's odd. Do you see the butterfly flap inside the rear of the exhaust?
Nope. No butterfly flap down either of the 2 tubes in either exhaust/muffler. As I posted above, it looks like the area where the nipple was located (based on the picture that had been posted on this board long ago), has been sloppily welded up!
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04-27-2004, 05:22 PM
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Here's a pic looking over the top of the exhaust
<center><img src="http://pictureposter.audiworld.com/54274/photo_026.jpg"></center><p>Here's a pic looking over the top of the exhaust tip. The space between the 2 pipes has no vacuum line/nipple.
04-27-2004, 05:25 PM
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Here's a pic looking down one of the two pipes of the tip
<center><img src="http://pictureposter.audiworld.com/54274/photo_027.jpg"></center><p>Here's a pic looking down one of the two pipes of the tip. There is no butterfly on either pipe.
04-27-2004, 05:28 PM
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Here's a pic looking down the other pipe of the exhaust tip
<center><img src="http://pictureposter.audiworld.com/54274/photo_028.jpg"></center><p>This pic didn't come out so well, but I can tell you that there is no butterfly in sight down either tube when looking as far as you can through the exhaust tip.