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Standard cat-back any good?

Discussion in 'A3/S3/Sportback (8P Chassis)' started by H17YD L, May 23, 2013.

  1. H17YD L

    H17YD L Active Member

    Joined:
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    I'm getting a downpipe and de-cat fitted, just wondered if the cat-back is restrictive at all? Most cars I've had didn't benefit from a cat back the downpipe and cats were the main problems?
    Is the S3 the same?
     

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