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B5 S4 downpipes on A6/ B5 S4 BBK on A6 possible???

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Old 03-09-2007, 07:32 AM
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Default B5 S4 downpipes on A6/ B5 S4 BBK on A6 possible???

The downpipes I'm not sure about. Anybody ever do it?

The BBK from what I know should be okay (it's a 332mm kit I'm looking at). Anything to look out for?
Old 03-09-2007, 09:12 AM
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Default S4 downpipes are different - the left & right sides have different length pipes coming out of

the cats to go the cat-back, whereas the A6 downpipes are equal length where they tie into the cat-back.

If you can get a great deal on S4 downpipes it might be worth having an exhaust shop weld up the proper tubing length, though.

Also be aware that tip downpipes are different from 6-speed versions, I believe to clear the bulkier tip transmission.
Old 03-09-2007, 09:49 AM
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Default I put the S4 piggie's on mine, the driver's side needed to get trimmed down a little. just make sure

they're from the same transmission set-up...6-speed to 6-speed. If I remeber right the S4 pipes were also a little larger diameter then the A6 ones...
Old 03-09-2007, 11:43 AM
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So the shorter of the two was still long enough to mate w/ the cat-back? Interesting.
Old 03-09-2007, 02:37 PM
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ah...Houston...we may have a problem..I don't think we are on the same tranny page
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