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Can anyone identify these downpipes? If the pics are not good enough let me know....

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Old 02-03-2005, 06:17 AM
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Default Can anyone identify these downpipes? If the pics are not good enough let me know....

<center><img src="http://pictureposter.audiworld.com/71155/s4_exhuast_004.jpg"></center><p>and I'll try again.
Old 02-03-2005, 06:25 AM
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old apr?
Old 02-03-2005, 06:27 AM
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Default APR?

Pics courtesy of Mark P:
<img src="http://ctny.audiworld.com/mark/s4/downpipes/DSC04666.JPG">
<img src="http://ctny.audiworld.com/mark/s4/downpipes/dsc05295.jpg">

-Dave Pramanik
Old 02-03-2005, 06:30 AM
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Ah, yeah. older APR DPs were the only one with the O2 sensors before the cats, IIRC.
Old 02-03-2005, 06:35 AM
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Weren't the bungs mounted on the cat/testpipe section though? Don't recognize these.
Old 02-03-2005, 06:36 AM
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Not sure... the flex joint and flange look like the current APR ones though.
Old 02-03-2005, 06:37 AM
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Default question #2 then. Does the 02 location have anything to do with why it does not throw a CEL?....

The light comes on when you start the car but then goes off so it works, but, it never comes on even when I have a code stored for other problems. I have X sauce.
Old 02-03-2005, 06:39 AM
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Default no. it should throw a code all the time

the only time it wouldnt throw the code is if the placment iof the o2 sensor was after the main cat. in your case, its before the main cat.
Old 02-03-2005, 06:39 AM
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Default With the O2 sensor in that location (before the cat) you should throw a DTC with anything other than

APR 2+ software.

-Dave Pramanik
Old 02-03-2005, 06:39 AM
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Lol, you should have a CEL. Lucky I guess...


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