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JMS O2 Sensor Extension Kit - Front Pair (11-14 GT; 12-13 BOSS 302)

Market Price $59.00 You Save 12% ($7.00)
Our Price

$52.00 (kit)

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  • Item 399990

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    Features & Details

    • Extended Front O2 Sensor Harness Kit
    • Ideal for Installation of Modified Exhaust System
    • 12-Inch Length
    • Suits Aftermarket Headers and Cat-Back Exhaust Systems
    • OEM Terminals, Connectors, Wiring, Seals
    • Eliminates Dangerous Splicing
    • Sold As a Pair
    • Plug-and-Play Installation
    • Fits 2011-2014 Ford Mustang GT and BOSS Models
    The Perfect Way to Adapt Aftermarket Exhaust Systems. If you upgrade your 2011–2014 Mustang BOSS or GT with aftermarket headers and a cat-back system, the front oxygen sensors can get moved to a location too far for the original Ford wiring harness to reach. The old messy solution was to splice in extensions but this can result in weak or crossed signals that can impede safe performance or even worse, damage expensive O2 sensors. The JMS O2 Sensor Extension Kit is the perfect solution, giving you an easy plug-and-play set of extensions that maintain Ford OEM standards of components and performance.

    OE Quality Parts. JMS manufactures the O2 Sensor Extension Kit from Ford OEM wiring, seals, connectors and terminators. You get Ford factory quality all the way through, making your aftermarket exhaust installation simply more of a better thing!

    Easy Plug-In Installation. The O2 Sensor Extension Kit from JMS includes two wiring harness extension cables. Simply plug them into the corresponding connectors in the wiring harness and the relocated front oxygen sensors in minutes.

    Application. The JMS O2 Sensor Extension Kit fits all Ford Mustang BOSS and GT models from 2011 to 2014.

    Fitment: 2011 2012 2013 2014 Details

    MPN# JO21114

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (2) Oxygen Sensor Extensions
    Installation Info
    Will it fit my Mustang?

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    Customer Reviews (1) Write a Review

    Overall Rating 5

    out of 5 stars

    Installation Time:Less than 1 Hour

    • Performance Gain 1 1
    • Fit 5 5

    • 5/5

      Installation Time: Less than 1 Hour

      October 15, 2018

      Good quality

      Proper fit, hard to get to. Description says it all


      Year: 2012 Submodel: GT

      Helpful (5)

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