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  1. #1
    Junior Member Two Rings
    Join Date
    Jan 26 2010
    AZ Member #
    53946
    Location
    CA

    What is the stock exhaust diameter on a 2012 B8?

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    Downpipe and cat back please. I searched but I guess this is not a common question I couldn't find anything. I'm trying to get the right sized u-clamps to attach dampers to the exhaust and I ordered 2.5" and the shop told me they were the wrong size.

    Thanks,

    Omar
    2012 Monsoon Grey Metallic S4 Prestige
    034 Stage 2+ E40

  2. #2
    Veteran Member Three Rings
    Join Date
    Apr 04 2017
    AZ Member #
    397057
    My Garage
    10 S4, 01 S4, 14 328d
    Location
    Chicago IL

    2.25" Might be hard information to search for but I think I just saw it asked in the last 48hrs somewhere.

  3. #3
    Established Member Two Rings 4uattros4's Avatar
    Join Date
    Jan 10 2016
    AZ Member #
    367000
    My Garage
    2001 B5 S4 Stage 3 Single Turbo, 2015 Audi A3
    Location
    North Jersey

    2.25” starting at the downpipes


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    Stage 3 B5 S4 Laser Red (Precision 5858, Bosch 1000 cc injectors, German Elite Tuning Tuned, O34 LWFW, Clutch Masters Stage 3+, JHM Trio, 17z BBK, Mishimoto FMIC and all the parts on the Europa Parts Catalog) Stock VW Atlas Daily

    AKA: dcmk7

  4. #4
    Junior Member Two Rings
    Join Date
    Jan 26 2010
    AZ Member #
    53946
    Location
    CA

    Thanks guys.
    2012 Monsoon Grey Metallic S4 Prestige
    034 Stage 2+ E40

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