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Anyone upgraded their 3.0 TDI downpipe?

Discussion in 'Tuning' started by viio, May 23, 2014.

  1. viio

    viio Member

    Jul 9, 2013
    Likes Received:
    I made sure I bought the non-DPF version of the car, but there's still a giant cat or two on the downpipe.
    Has anyone had these replaced with a new downpipe, or has images of what the stock one looks like when it's not fitted?

    I can't really get a decent image of the beast, but here's an effort.

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  3. desertstorm

    desertstorm Moderator
    Staff Member Moderator VCDS Map User quattro Audi A4 Audi Avant Owner Group TDi

    Nov 21, 2013
    Likes Received:
    I would just gut them rather than replacing them. POtentially run into issues at the MOT if the tester wants too he could fail the car if it has no cats when it should have them fitted from new. And they would know that the car should have some kind of cat.

  4. Brodster

    Brodster Well-Known Member
    Team Ibis VCDS Map User Audi Avant Owner Group Audi S4

    Mar 17, 2011
    Likes Received:
    One will be the empty DPF cannister mate as on some models they still fitted the cannister without the internal gubbings. If your looking at de-cat sceanrio you may have to amend the map to extinguish the EML light which should illuminate if a de-cat pipe is fitted and as stated by desertstorm MOT failure. Alot of my customers with heavily modified S3's are fitting quick release clamps for removing the de-cat pipe and refitting the cat when it comes to MOT time......maybe worth looking into.
    PAULF likes this.

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