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S50 o2 sensors and relays

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    S50 o2 sensors and relays

    I am trying to button up my S50 swap and was wondering where everyone put their o2 sensors at and how many they used. I used the OBD II headers can I just use the two o2 bungs in the headers? Also what relays did you use with the wiring harness, the relays from the e36, or the e30 relays? Thanks

    Beau
    1988 BMW 325iS

    #2
    e36 relays ad obd1 just uses 1 o2 sensor, i put mine right where the y pipe turns into 1 pipe. thats where it was on factory obd1 m50.

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