See only parts compatible with your vehicle

    Engine Management Harnesses

    When plugging in and unplugging your engine management system on a frequent basis, it can put a little wear and tear on your provided connection cable. When this happens, RallySport Direct will be here to offer you moral support, as well as a great selection of Engine Management Harnesses to allow you to continue your tuning journey. Choose from different variations of COBB Tuning cables for the popular Accessport, or choose one of COBB Tuning's Tuning Initialization Connectors. Additionally, if you have a vehicle equipped with the Vortech Supercharger, the Vortech Supercharger Kit Plug and Play MAF Adapter is available for those who need a replacement.

    When shopping for an Engine Management Harness, make sure you have another look at our large selection of Engine Management products in case if you need an upgrade. And be sure to check out our large selection of Engine Management Sensors for those of you looking to make more boost. 

    Shop featured products

    3 Results

    COBB Tuning Init Connector - 2003-2005 Subaru WRX

    AE-WRX-FLASHMODE-03

    COBB Tuning Init Connector - 2003-2005 Subaru WRX

    5.0(1)
    $7.00
    Cobb Tuning Initialization Connector Blue - 2002 Subaru WRX

    AE-WRX-FLASHMODE-02

    Cobb Tuning Initialization Connector Blue - 2002 Subaru WRX

    4.0(1)
    $7.00
    COBB Tuning CAN Gateway Harness And Bracket Kit - 2009-2018 Nissan GT-R

    3C1600

    COBB Tuning CAN Gateway Harness And Bracket Kit - 2009-2018 Nissan GT-R

    $135.00

    Page 1 of 1

    Best Sellers

    GrimmSpeed Turbo to Downpipe Gasket - Subaru Turbo Models

    50 In Stock

    028001

    GrimmSpeed Turbo to Downpipe Gasket - Subaru Turbo Models

    5.0(123)
    $20.00
    GrimmSpeed Stock Downpipe to 3inch Exhaust Adapter - Subaru Models

    50 In Stock

    077046

    GrimmSpeed Stock Downpipe to 3inch Exhaust Adapter - Subaru Models

    4.9(60)
    $60.00
    Subaru OEM Donut Gasket - Subaru EJ Models (inc. 2004-2021 STI / 2002-2014 WRX)

    40 In Stock

    44022AA123

    Subaru OEM Donut Gasket - Subaru EJ Models (inc. 2004-2021 STI / 2002-2014 WRX)

    5.0(45)
    $24.70
    Koyo Aluminum Racing Radiator Manual Transmission - 2003-2007 Subaru WRX / STI

    1 In Stock

    VH091672

    Koyo Aluminum Racing Radiator Manual Transmission - 2003-2007 Subaru WRX / STI

    5.0(40)
    $538.20
    Hawk HPS Front Brake Pads 15-17 STI 04-14 Impreza

    HB453F.585

    Hawk HPS Front Brake Pads 15-17 STI 04-14 Impreza

    4.7(37)
    $170.99
    Koyo Aluminum Racing Radiator (Manual) - 2008-2021 Subaru WRX / STI

    51 In Stock

    VH091662

    Koyo Aluminum Racing Radiator (Manual) - 2008-2021 Subaru WRX / STI

    4.9(36)
    $565.60
    COBB Tuning Accessport V3 - 2015-2021 Subaru WRX / STI / 2014-2018 Forester XT

    50 In Stock

    AP3-SUB-004

    COBB Tuning Accessport V3 - 2015-2021 Subaru WRX / STI / 2014-2018 Forester XT

    4.8(35)
    $770.00
    GrimmSpeed GS/OEM Subaru Crank Pulley Removal/Installation Tool - Subaru Models

    50 In Stock

    095011

    GrimmSpeed GS/OEM Subaru Crank Pulley Removal/Installation Tool - Subaru Models

    4.8(35)
    $65.00
    COBB Tuning 3-Port Boost Control Solenoid - 2002-2007 Subaru WRX/STI / 2004-2008 Forester XT

    4 In Stock

    712750

    COBB Tuning 3-Port Boost Control Solenoid - 2002-2007 Subaru WRX/STI / 2004-2008 Forester XT

    4.9(29)
    $190.00
    STI Group N Left Side Engine Mount - 2002-2014 Subaru WRX / STI

    6 In Stock

    D1010FE120

    STI Group N Left Side Engine Mount - 2002-2014 Subaru WRX / STI

    5.0(29)
    $99.95

    110% Price Match Guarantee*

    Find the same product for less on any competitor's site, and we'll match that price and beat if by 10% of the difference!* 

    Free Shipping*

    Free shipping is available within the lower 48 states for orders totalling $199 or more. Simply select the free shipping option during checkout.
    *Exclusions apply

    30 Day, 100% Satisfaction

    RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.