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Knocking sound 3" downpipe

Discussion in 'A3/S3 Forum (8L Chassis)' started by Gordie_S3, Apr 14, 2013.

  1. Gordie_S3
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    Gordie_S3 Member

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    [Apr 14, 2013]
    Just finished up bolting up my 3" relentless downpipe, and now all of sudden a annoying knocking sound has appeared when I take off/ accelerate / full lock etc.

    I checked cv joints are okay, checked sub frame bolts and engine mounts...all good :/

    Any suggestions guys?
    #1
  2. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Apr 14, 2013]
    I'd guess the DP is hitting something when the engine is rocking under acceleration/braking.
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  3. James TQ
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    James TQ Member

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    [Apr 15, 2013]
    thread on here, new engine mounts should stop it, i have the same knock and will be replacing mine soon
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