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Showing 1–16 of 18 results

  • 8′ MegaSquirt Wiring Harness (MS1/MS2/MS3 Ready)

    5 out of 5
    $83.00

    MegaSquirt Wiring Harness - 8 Feet LongWe've completely redesigned our wire harness to help you get your fuel injection installation right the first time with several new features to help make your installation as easy and reliable as possible:...

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  • 8′ MegaSquirt Wiring Harness for MS3X

    5 out of 5
    $86.00

    MegaSquirt MS3X Wiring Harness - 8 feet8' of TXL High temp automotive grade wire. Color coded wiring with labeling printed on the wire every 6 inches -- no paper tags here! All wiring is pre-crimped (NOT solder cupped!) to the DB37 Heavy d...

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  • MS3Pro EVO Wiring Harness – Universal Flying Lead

    $249.00

    MS3Pro EVO Complete 8' Flying Lead Harness Only (White & Gray connectors with 8' pigtails) arrives with color-coded, printed wires per the pinout below.All applications. 

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  • MS3Pro ULTIMATE Wiring Harness – Universal Flying Lead

    $299.00

    MS3Pro ULTIMATE Complete 8' Flying Lead Harness Only (White-Black-Gray connectors with 8' pigtails) arrives with color-coded, printed wires per the pinout below.All applications. 

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  • MS3Pro ULTIMATE Center Harness

    5 out of 5
    $49.00

    MS3Pro ULTIMATE adds nearly 50% more I/O with the addition of a third AMPSEAL 23-pin, 8' flying lead.  Harness arrives with color-coded, printed wires per the pinout below (black center connector)***Center Harness ONLY in this listing, intended for p...

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  • MS3Pro EVO Uncrimped AMPSEAL Connectors

    $60.00

    Making your own harness? This plug and pin kit features the MS3Pro AMPSEAL white & gray connectors plus 75 pins- more than enough for making your own MS3Pro EVO or 1st Gen harness.MS3Pro ULTIMATE 3-connector AMPSEAL Kit available here

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  • MS3Pro ULTIMATE Uncrimped AMPSEAL Connectors

    $82.00

    Planning to make your own ULTIMATE harness? This plug and pin kit features the MS3Pro ULTIMATE AMPSEAL white, black & gray connectors, plus 100 pins- more than enough for making your own!(EVO/ 1st Gen 2-connector AMPSEAL Kit sold separately)

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  • MS3Pro 1st Gen Wiring Harness Upgrade (for ULTIMATE and EVO)

    $22.00

    If you have a previously installed MS3Pro harness (1st Gen flying lead or LS Drop On Harness) and want to upgrade to MS3Pro EVO or ULTIMATE ECU, the upgrade path is simple.  However, complete functionality will require a few basic changes to your 1st Ge...

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  • MegaSquirt 3X Wiring Bundle – 8′ long

    $51.00

    MegaSquirt MS3X Wiring Bundle - Length = 8'8' of TXL High temp automotive grade wire. Color coded wiring with labeling printed on the wire every 6 inches -- no paper tags here! Use with MS3X Expansion board or other sequential deviceJust ...

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  • MS3Pro EVO with GM LS 24x Plug and Play Harness

    5 out of 5
    From: $1,749.00

    MS3Pro EVO GM LS 24x Plug and Play includes an MS3Pro EVO ECU, TunerStudio software and the most rugged & durable GM 24X custom harness in the aftermarket.  Experience the MS3Pro EVO.MS3Pro EVO is an evolution, not a revolution- a scaled u...

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  • MS3Pro ULTIMATE with GM LS 24x Plug and Play Harness

    From: $2,049.00

    MS3Pro ULTIMATE GM LS 24x Plug and Play includes an MS3Pro ULTIMATE ECU, TunerStudio software and the most rugged & durable GM 24X custom harness available. Experience the MS3Pro ULTIMATE.The Ultimate brings NEXT LEVEL capability to MS3Pro...

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  • MS3Pro LS Plug and Play Harness Alternator Lead Extension

    $25.00

    30" extension for GM LSx alternator subharness.  Our harness will require this if used with Camaro, Firebird, GTO, or CTS-V accessory drives. You can also use this with aftermarket brackets that move the alternator to a low mount position or relocate it ...

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  • GM LS 24x Plug and Play Engine Harness – for MS3Pro Ultimate/Evo

    From: $799.00

    For MS3Pro ULTIMATE/ EVO plug and play installation on GM LS engines with a 24x crank trigger.The MS3-Pro 24x LS Plug and Play Harness is the highest quality, best value option for LS Motors in the industry today.  Save your hard earned time and mone...

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  • GM LS 58x Plug and Play Engine Harness – for MS3Pro Ultimate/Evo

    From: $799.00

    For MS3Pro ULTIMATE/ EVO plug and play installation on GM LS engines with a 58x crank trigger.The MS3Pro 58x LSX Series Plug and Play Harness is the highest quality, best value option for LS Motors in the industry today.  Save your hard earned time a...

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  • MS3Pro LS 4L80E Trans Control Subharness

    $279.00

    Harness Only.  Optional automatic transmission control using our MicroSquirt transmission controller (sold separately).  Literally, just plug in our transmission controller with the 4L80E subharness and  you’re ready to control your trans via CAN wi...

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  • MS3Pro LS 4L60E Trans Control Subharness

    $279.00

    Optional automatic transmission control using our MicroSquirt transmission controller (sold separately).  Literally, just plug in our transmission controller with the 4L60E subharness and  you’re ready to control your trans via CAN with MS3Pro!

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