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Thread: Can I use angled o2 sensor extantion for pre cats?

  1. #1
    Join Date
    Dec 2018
    Location
    Biddeford
    Posts
    2
    My Cars
    Bmw 325Xi 2004

    Can I use angled o2 sensor extantion for pre cats?

    Hi guys can I use angled o2 sensors for pre car o2 sensors I just bought eBay headers and I don’t have space to put my o2 sensors and I’m looking for solutions?

  2. #2
    Join Date
    Jul 2004
    Location
    Houston, TX
    Posts
    12,440
    My Cars
    36 Cylinders
    You absolutely cannot rig the precat O2 sensors with extension tubes. They will not measure correctly and you will get a very incorrect fuel mixture into engine.
    -Abel

    - E36 328is ~210-220whp: Lots of Mods.
    - 2000 Z3: Many Mods.
    - 2003 VW Jetta TDI Manual 47-50mpg
    - 1999 S52 Estoril M Coupe
    - 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
    - 2019 M2 Competition, self-tuned, 504whp
    - 2016 Mini Cooper S

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