A6 / S6 (C5 Platform) Discussion Discussion forum for the C5 Audi A6 and S6 produced from 1998-2004

I want to know more about piggie pipes...

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Old 03-27-2003, 12:18 PM
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Default I want to know more about piggie pipes...

I've been thinking about DP's lately, but there so damn expensive!! I heard about this "piggie pipes" modification to stock DP's. Does anyone have them installed? How much? Where are they done? Good or bad experience with them?

Thanks?
Old 03-27-2003, 12:27 PM
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Knock out the precats and relocate the O2 sensor aft of the main cat.
Old 03-27-2003, 12:31 PM
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Anybody have pics?
Old 03-27-2003, 12:42 PM
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Default Better flow, , as LCp states its knocking out the pre cat guts and then relocating the sensor

It does work. Although if the job is botched, then you have to get some others and then it becomes expensive.
Old 03-27-2003, 12:56 PM
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Default But will the car be able to pass a state emissions inspection?

If it won't pass, then why not complete take out the main cat? If it won't pass even with the main cat, then what can be done to get it to pass inspection with piggie pipes?
Old 03-27-2003, 02:07 PM
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Default Just a hollowing of the 1st set of cats and moving the sensor?

that's it?
Old 03-27-2003, 03:13 PM
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So long as the cat is warm it should.
Old 03-28-2003, 11:31 AM
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Default They are made by Piggie (mike) on the S4 forum usually.

You should be able to find a post by him and send him an email. Usually he has at least one set for the S4 done, so he sends that to the purchaser, and gets the stock ones in return - which he then guts, resells, etc.

Mike's a great guy, not sure if he will have some A6 DPs available. Not even sure if they are different from the S4 actually. I assume they are though.

-st
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