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  1. #1
    Established Member Two Rings electron bom's Avatar
    Join Date
    Aug 28 2017
    AZ Member #
    My Garage
    B9 S4 EVO IX
    North Carolina

    Downpipe spacer with restrictive insert

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    Some members have made the claim that an O2 spacer will not prevent CEL occurrences when used in concert with a catless downpipe (for off-road use, naturally). My question is, has anyone tried this (below)? It's a spacer with a restrictive insert.

  2. #2
    Established Member Two Rings Marzoum's Avatar
    Join Date
    Dec 17 2017
    AZ Member #
    My Garage
    8V S3

    Nice find.... I have not but will order by this weekend. I like the adjustable gas insert.

    Sent from my Pixel 3 using Audizine mobile app

  3. #3
    Stage 2 Banner Advertiser Two Rings Aaron@DTP's Avatar
    Join Date
    Feb 01 2018
    AZ Member #
    Hermosa Beach, CA

    Yes. It won’t work.

    Sent from my iPhone using Audizine
    DT Power - Official US distributor for DTE Systems

  4. #4
    Established Member Two Rings samwisemueller's Avatar
    Join Date
    Nov 12 2007
    AZ Member #
    My Garage
    '18 S4, '18 Tiguan
    Alexandria, VA

    I can confirm that the vibrant spacer does not work no matter which insert you I used on the catless downpipe I ran for a bit. It would seem to be working then if you get even close to WOT, prepare for the light.

  5. #5
    Active Member One Ring Omychron's Avatar
    Join Date
    Dec 18 2018
    AZ Member #

    How about with sport cats, as opposed to catless?
    Is an insert like this required? If yes, do they work?

    Current: 2017 Audi S5 (B9)
    Previous: 2015 Audi TT (8S)

  6. #6
    Active Member Two Rings
    Join Date
    Sep 11 2017
    AZ Member #
    Orange County, CA

    Has anybody tried a catted o2 spacer? Actually had anybody found a solution that works?


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