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V6 exhaust technical post


rs32
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Hi ya,

DON'T WORRY ! This is typical of Audi/BMW twin exhausts.

If the R32/4Motions are the same as the Audi A3/A4 v6/v8's then you will have a little device in the silencer to reduce the noise for Euro drive-by emmissions.

See the attached diagram for the S4. My mates A3 3.2 Quattro has the same vacume operated flap.

Both of us have pulled the vacume pipes off, popped a screw in the pipe end(s) to avoid dirt ingress and the sound is much better over stock now !

jump.gif

Thanks to Milltek for the picture

post-9898-137914344098_thumb.jpg

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cheers Paul, that's a good pic, understand more about it now with yours & Mook's descriptions and the picture combined. TSN teamwork yet again!! 169144-ok.gif

will start to open the engine up properly soon so I'll keep an eye on how they both darken over time.

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