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ultimate

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  • Replacement MS3-Pro fuse, 500 mA

    MS3Pro Ultimate & EVO F5 Replacement Fuse

     $3.00

    The MS3Pro ECU’s feature user-replaceable fuses that protect against voltage spikes and other abuse. To replace these fuses, use a needle nose pliers to pull the fuse out of its holder, and then push in the replacement fuse by hand. This is the 6000m...

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  • MS3Pro Ultimate ECU Wiring Harness

    MS3Pro ULTIMATE Wiring Harness – Universal Flying Lead

     $349.99

    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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  • AMP EFI MS3Pro Ultimate Black Center Harness Flying Lead

    MS3Pro ULTIMATE Center Harness

    5 out of 5
    $59.99

    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 Ultimate AMP AMPSEAL 35 pin connector with terminal pins - uncrimped 2

    MS3Pro Uncrimped AMPSEAL Connectors

     $89.99

    Planning to make your own ECU harness? This plug and pin kit includes everything you need to get started with a custom MS3Pro wiring setup. Key Features: Compatible with MS3Pro EVO+ MS3Pro EVO+ HC MS3Pro Ultimate ...

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  • MS3Pro ECU plug and play wiring harness LS Engines 58x EV6 Fuel Injectors

    GM LS 24x PNP Harness – for MS3Pro Ultimate/Evo

    4.5 out of 5
    From: $899.00

    Note: This product has been expertly modified from our original 58X harness with only slight adjustments to meet 24X specifications   For MS3Pro ULTIMATE/ EVO plug and play installation on GM LS engines with a 24x crank trigger. The MS3-Pro 24...

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  • MS3Pro ECU plug and play wiring harness LS Engines 58x EV6 Fuel Injectors

    GM LS 58x PNP Harness

     From: $899.00

    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 Ultimate ECU by AMP EFI

    MS3Pro ULTIMATE Standalone EMS – ECU Only

     $1,499.00

    Experience the MS3Pro ULTIMATE by AMP EFI, featured in Street Outlaws No Prep Kings contestant, The Hulk. MS3Pro ULTIMATE by AMP EFI brings NEXT LEVEL capability to MS3Pro's staggering feature set beginning with a new high quality aluminum IP65 rated...

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  • MS3Pro Ultimate Standalone Engine Management System w/ Harness

    5 out of 5
    $1,749.00

    Experience the MS3Pro ULTIMATE by AMP EFI, featured in Street Outlaws No Prep Kings contestant, The Hulk. Developed from the MS3Pro 1st Gen platform, the MS3Pro ULTIMATE brings NEXT LEVEL capability to MS3Pro's staggering feature set beginning with a...

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