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  1. #1
    Veteran Member Four Rings Luxus Panzer's Avatar
    Join Date
    Apr 15 2014
    AZ Member #
    187873
    My Garage
    B6 A4 Avant, B4 90 Sprot Q, B4 90 FWD, 2014 VW Tiguan
    Location
    Ottawa/Gatineau Canada

    Can domeone please confirm thr Stock B6 A4 1.8t AMB Cat part #

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    My research shows 8E0 906 018





    But this does not seem right as google part search under that number gets me a ECU of some sort...



    what about 8E0 131 089 ?
    2004 A4 Avant Quattro. (H&R springs, S100 Nav unit, Neuspeed Cat back, Torque solutions Snub mount, Thor Skid Plate, APR Stage 1, 18" S4 Rims, 2X Podi / Oil Press / Oil Temp / Boost/VAC, Full LED interior, Backup Camera/Screen, Upgraded 2.0 Coil Packs, Vag-Com, B7 Center console/B7 Hand Brake, B7 Aero wiper arms B7 rear headreasts,APR Carbonio intake, Fan washer sprayers,
    2014 VW Tiguan. (bone stock)

  2. #2
    Veteran Member Three Rings
    Join Date
    Dec 30 2014
    AZ Member #
    306751
    My Garage
    Nogaro 2000 S4 6-Speed, Ebony Pearl 2002 A4 5-Speed
    Location
    South Carolina

    I got my old one if you want it?

  3. #3

  4. #4
    Veteran Member Four Rings old guy's Avatar
    Join Date
    Dec 28 2006
    AZ Member #
    14483
    My Garage
    '13 A5, '24 Tiguan SEL R-Line
    Location
    Western Maryland

    2003 1.8T

    8D0 131 702 HP

    Also on the same Cat is 8D0 178 BE



    Last edited by old guy; 04-25-2016 at 04:04 PM.
    '03 A4 5-MT Motoza tuned Frankenturbo F21L With full supporting mods. Sold (and missed dearly).
    '13 A5 6-MT Needs more Fun Stuff: Neuspeed PM / 3.0 TDI Intercooler / H&R OE Sport Springs / Bilstein B8 Shocks / TyrolSport Brake Stiffeners / ECS Short Shifter / S5 Side Skirts / RS Grille

  5. #5
    Veteran Member Four Rings diagnosticator's Avatar
    Join Date
    Aug 26 2005
    AZ Member #
    7741
    Location
    Seattle, WA

    8E0 906 018 is an ECU base part number.
    Vorsprung durch Technik

  6. #6
    Veteran Member Four Rings Luxus Panzer's Avatar
    Join Date
    Apr 15 2014
    AZ Member #
    187873
    My Garage
    B6 A4 Avant, B4 90 Sprot Q, B4 90 FWD, 2014 VW Tiguan
    Location
    Ottawa/Gatineau Canada

    Quote Originally Posted by old guy View Post
    2003 1.8T

    8D0 131 702 HP

    Also on the same Cat is 8D0 178 BE





    Is the 8DO 178 BE an OEM part for the B6 A4?
    2004 A4 Avant Quattro. (H&R springs, S100 Nav unit, Neuspeed Cat back, Torque solutions Snub mount, Thor Skid Plate, APR Stage 1, 18" S4 Rims, 2X Podi / Oil Press / Oil Temp / Boost/VAC, Full LED interior, Backup Camera/Screen, Upgraded 2.0 Coil Packs, Vag-Com, B7 Center console/B7 Hand Brake, B7 Aero wiper arms B7 rear headreasts,APR Carbonio intake, Fan washer sprayers,
    2014 VW Tiguan. (bone stock)

  7. #7
    Veteran Member Four Rings old guy's Avatar
    Join Date
    Dec 28 2006
    AZ Member #
    14483
    My Garage
    '13 A5, '24 Tiguan SEL R-Line
    Location
    Western Maryland

    Both of those pictures came from the same catalytic converter that I removed from my car last year.
    '03 A4 5-MT Motoza tuned Frankenturbo F21L With full supporting mods. Sold (and missed dearly).
    '13 A5 6-MT Needs more Fun Stuff: Neuspeed PM / 3.0 TDI Intercooler / H&R OE Sport Springs / Bilstein B8 Shocks / TyrolSport Brake Stiffeners / ECS Short Shifter / S5 Side Skirts / RS Grille

  8. #8
    Veteran Member Four Rings Luxus Panzer's Avatar
    Join Date
    Apr 15 2014
    AZ Member #
    187873
    My Garage
    B6 A4 Avant, B4 90 Sprot Q, B4 90 FWD, 2014 VW Tiguan
    Location
    Ottawa/Gatineau Canada

    Quote Originally Posted by old guy View Post
    Both of those pictures came from the same catalytic converter that I removed from my car last year.
    I can not see the 2nd pic :(
    2004 A4 Avant Quattro. (H&R springs, S100 Nav unit, Neuspeed Cat back, Torque solutions Snub mount, Thor Skid Plate, APR Stage 1, 18" S4 Rims, 2X Podi / Oil Press / Oil Temp / Boost/VAC, Full LED interior, Backup Camera/Screen, Upgraded 2.0 Coil Packs, Vag-Com, B7 Center console/B7 Hand Brake, B7 Aero wiper arms B7 rear headreasts,APR Carbonio intake, Fan washer sprayers,
    2014 VW Tiguan. (bone stock)

  9. #9
    Veteran Member Four Rings old guy's Avatar
    Join Date
    Dec 28 2006
    AZ Member #
    14483
    My Garage
    '13 A5, '24 Tiguan SEL R-Line
    Location
    Western Maryland

    Quote Originally Posted by Luxus Panzer View Post
    I can not see the 2nd pic :(
    Both of the part numbers that I listed were on the same OEM catalytic converter that I replaced with a 034 HFC last year.

    Stamped above the Audi rings was 8D0 131 702 HP.

    Stamped below the Audi rings was 8D0 178 BE.

    So I assume they are both valid Audi OEM part numbers.
    '03 A4 5-MT Motoza tuned Frankenturbo F21L With full supporting mods. Sold (and missed dearly).
    '13 A5 6-MT Needs more Fun Stuff: Neuspeed PM / 3.0 TDI Intercooler / H&R OE Sport Springs / Bilstein B8 Shocks / TyrolSport Brake Stiffeners / ECS Short Shifter / S5 Side Skirts / RS Grille

  10. #10
    Veteran Member Four Rings mauromj's Avatar
    Join Date
    Jul 23 2012
    AZ Member #
    97337
    Location
    Pullman, WA

    Ive got one if you want it. 70k miles.

  11. #11
    Veteran Member Four Rings Luxus Panzer's Avatar
    Join Date
    Apr 15 2014
    AZ Member #
    187873
    My Garage
    B6 A4 Avant, B4 90 Sprot Q, B4 90 FWD, 2014 VW Tiguan
    Location
    Ottawa/Gatineau Canada

    I am going to pick up a OEM Cat I found for a good price.

    The add says "brand new", however under further questions I am now told that it was installed for a E test and removed right after and a test pipe put on... less than 50K (KM) on it.

    How do I visually inspect a CAT to determine if it is in fact close to new??
    2004 A4 Avant Quattro. (H&R springs, S100 Nav unit, Neuspeed Cat back, Torque solutions Snub mount, Thor Skid Plate, APR Stage 1, 18" S4 Rims, 2X Podi / Oil Press / Oil Temp / Boost/VAC, Full LED interior, Backup Camera/Screen, Upgraded 2.0 Coil Packs, Vag-Com, B7 Center console/B7 Hand Brake, B7 Aero wiper arms B7 rear headreasts,APR Carbonio intake, Fan washer sprayers,
    2014 VW Tiguan. (bone stock)

  12. #12
    Established Member Two Rings dmanisgnarly's Avatar
    Join Date
    Nov 05 2014
    AZ Member #
    293161
    My Garage
    Supermotos & Sportbikes
    Location
    The East Coast, NC

    Look at the combs inside... if they are deteriorated or missing then its bad. I have a mint cat with less than 30,XXX miles on it. 60 Bucks shipped.
    2005 S4//K&N/Pod filter/Carbon MAF extension/APR Carbon NACA ram-air duct/JHM intake-mani spacers/Gutted piggies/Custom Catback/034 Motorsport billet engine mounts/19” Peelers/034 Snub/Neuspeed lowering springs/JHM stage 4 Kevlar clutch/Rallyarmor mudflaps/Rocketbunny V2 front diffuser/canards/HIDs/DRLs/LEDs/trailer hitch

    02' A4 1.8T Quattro

  13. #13
    Veteran Member Four Rings imnuts's Avatar
    Join Date
    Aug 12 2009
    AZ Member #
    46297
    My Garage
    '21 F-150 Powerboost Lariat & '14 Acura RDX
    Location
    Dirty Jerz

    If the 1.8T has a metal support cat like the 3.0, you probably won't be able to tell how used it is. If it is ceramic, it would be easier to tell. Still no way to really determine if it's good or bad without installing it though.

    Sent from my DROID Turbo 2

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