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BBK O2 Wire Harness Extension Kit - Front Pair (11-14 GT)

Market Price $67.79 You Save 12% ($7.80)
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$59.99 (pair)

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  • Item 390800
  • MPN# 1112

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Ship to: Ashburn - 20149
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    Features & Details

    • Extended Front O2 Sensor Harness
    • Great for Modified Exhaust Systems
    • Easy to Install
    • 12" Long
    • Sold as a Set of Two Front Harnesses
    • Fits 2011-2014 GT Mustangs
    Plug and Play. When replacing the factory manifolds and Mid Pipe with a set of long tube headers and a shorty Mid Pipe on your 5.0L Mustang, you may notice the factory oxygen sensor wire harness comes up short when trying to hook up the front (upsteam) o2 sensors. An easy solution to fix this issue is picking up a pair of BBK Performance O2 Wire Harness Extension Kit. BBK designed these 12 inch long extension kit with OEM factory connectors to make it a simple plug and play install when you need to reconnect your sensors.

    Application. This set of two 12 inch BBK Performance O2 Sensor Extensions are designed to extend the front(upstream) O2 sensor harnesses on the 2011 to 2014 GT Mustangs equipped with the 4 valve 5.0 coyote engine.

    Please Note. O2 Sensors are not included with these extensions.

    Fitment: 2011 2012 2013 2014 Details

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (2) Front O2 Harness Extenders
    Installation Info
    Tech Specs
    Will it fit my Mustang?

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    Customer Reviews (8) Write a Review

    Overall Rating 4.9

    out of 5 stars

    Installation Time:Less than 1 Hour

    • Loudness / Volume 5 5
    • Exhaust Note 5 5
    • Fit & Finish 4.714286 4.7
    • Bang For Your Buck 4.857143 4.9

    • 5/5

      Installation Time: Less than 1 Hour

      September 10, 2018

      do not buy. wasted my money

      car would not rev up with these in place. dead spot in throttle with them in place. removed and problem went away. this was the only change made on car.


      Year: 2012 Submodel: GT

      Helpful (6)

    • 5/5

      Installation Time: Less than 1 Hour

      June 04, 2018

      They work

      Easy...plug and play!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!


      Year: 2013 Submodel: GT

      Helpful (8)

    • 5/5

      Installation Time: Less than 1 Hour

      November 07, 2017

      awesome fit

      fit perfect there a must if your running long tubes


      Year: 2012 Submodel: GT

      Helpful (8)

    • 5/5

      Installation Time: Less than 1 Hour

      July 11, 2017

      Great product

      Easy install. Perfect fit. Car is running great after these were installed for my tune


      Year: 2012 Submodel: GT

      Helpful (7)

    • 4/5

      Installation Time: Less than 1 Hour

      June 28, 2017

      Bang for buck

      Fit on spot, but wouldn't click into other end, used zip tie to hold together but no issues.


      Year: 2011 Submodel: GT

      Helpful (8)

    • 5/5

      Installation Time: Less than 1 Hour

      March 22, 2017


      Easy install...plug and go ..great :) Fits perfectly and right length.


      Year: 2014 Submodel: GT

      Helpful (8)

    • 5/5

      August 24, 2016

      Perfect fit

      Plug and play easy install hardest part was disconnecting the o2 sensor without breaking clips. Snap in the extension into factory harness and o2 sensor and your ready to go. Length was perfect for my longtube headers


      Year: 2013 Submodel: GT

      Helpful (10)

    • 5/5

      Installation Time: Less than 1 Hour

      June 30, 2016

      Great quality harness

      Looks like a factory harness , worked great for my long tube header install. Not the cheapest part in the world, but definitely great quality.


      Year: 2013 Submodel: GT

      Helpful (8)

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