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    LMMF SIMPLIFIED WIRING

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    ALL PRODUCTS 3100-3400 ENGINE 3800 ENGINE ECOTEC ENGINE 2.2 (non ecotec) ENGINE TOYOTA ENGINE LS ENGINE TRAILBLAZER APPAREL

    Featured products

    • “Party mode” temp sensor meltdown switch

      “Party mode” temp sensor meltdown switch

      “Party mode” temp sensor meltdown switch

      Regular price $120.00 USD
      Regular price Sale price $120.00 USD
      Unit price /  per 
    • Standard Switch box

      Standard Switch box

      Standard Switch box

      Regular price $175.00 USD
      Regular price Sale price $175.00 USD
      Unit price /  per 
    • Quick Disconnect switch box

      Quick Disconnect switch box

      Quick Disconnect switch box

      Regular price $225.00 USD
      Regular price Sale price $225.00 USD
      Unit price /  per 
    • 3100/3400/3800 Extended Length Heavy duty spark plug wires

      3100/3400/3800 Extended Length Heavy duty spark plug wires

      3100/3400/3800 Extended Length Heavy duty spark plug wires

      Regular price $40.00 USD
      Regular price Sale price $40.00 USD
      Unit price /  per 
    • 96-2005 3100/3400 harness ecm bundle package

      96-2005 3100/3400 harness ecm bundle package

      96-2005 3100/3400 harness ecm bundle package

      Regular price $495.00 USD
      Regular price Sale price $495.00 USD
      Unit price /  per 
    • 89-99 3100 harness and ecm bundle

      89-99 3100 harness and ecm bundle

      89-99 3100 harness and ecm bundle

      Regular price $525.00 USD
      Regular price Sale price $525.00 USD
      Unit price /  per 
    • 00+ 3100/3400 Simplified Harness

      00+ 3100/3400 Simplified Harness

      00+ 3100/3400 Simplified Harness

      Regular price $300.00 USD
      Regular price Sale price $300.00 USD
      Unit price /  per 
    • 98-05 3800 Series II simplified harness bundle

      98-05 3800 Series II simplified harness bundle

      98-05 3800 Series II simplified harness bundle

      Regular price $460.00 USD
      Regular price Sale price $460.00 USD
      Unit price /  per 
    View all

    Let customers speak for us

    from 89 reviews
    Work great nice

    Work great nice product

    Shawn Thomas
    02/13/2026
    EV1 -EV6 Injector adapter pigtails
    EV1 -EV6 Injector adapter pigtails

    Great and well worth it

    Nicholas
    02/05/2026
    Quick Disconnect switch box
    Quick Disconnect switch box
    Great product and Ryan is an awesome guy to deal with would definitely buy more from him

    Great product and Ryan is an awesome guy to deal with would definitely buy more from him.

    Tylor SCHAEFER
    01/31/2026
    Quick Disconnect switch box
    Quick Disconnect switch box
    Great company they did a great job love

    Great company they did a great job love it

    Nicholas Wise
    01/28/2026
    ECM mount bracket
    ECM mount bracket
    Amazing product…

    Amazing product…. Excellent customer service…. Above and beyond

    Eric Rice
    01/27/2026
    99-02 LS Drive-By-Cable Standalone Harness
    99-02 LS Drive-By-Cable Standalone Harness
    Tuned ECM

    Great to do business with!

    Ron Haney
    12/29/2025
    02-05 Ecotec tuned ecm
    02-05 Ecotec tuned ecm
    Works

    Works great!

    Anthony Vinton
    12/28/2025
    04-08 Series 3 3800 tuned ecm
    04-08 Series 3 3800 tuned ecm
    It's a xmas gift but a sought out one so I'm

    It's a xmas gift but a sought out one so I'm sure it will be loved and put to great use

    Nadine Pascuzzi
    12/18/2025
    “Party mode” temp sensor meltdown switch
    “Party mode” temp sensor meltdown switch
    Great

    Great Product

    Ron Haney
    12/10/2025
    Standard Switch box
    Standard Switch box

    Very pleased with there products great quality and fast shipping also great costomer service will buy from agian and higly recommend them.

    k.u.
    12/10/2025
    ECM mount bracket
    ECM mount bracket
    Great products and even better

    Great products and even better service

    Justin Broadhead
    12/09/2025
    LMMF SIMPLIFIED WIRING
    Awesome products and awesome

    Awesome products and awesome service

    Anonymous
    12/09/2025
    Powerwheel Headers Flare Tips – Set of 2
    Powerwheel Headers Flare Tips – Set of 2
    Great Product and Great to Deal

    Great Product and Great to Deal With!!

    Ron Haney
    12/05/2025
    02-05 2.2 Ecotec harness
    02-05 2.2 Ecotec harness
    Perfect Customer Service

    Ryan has been awesome to deal with and has been spectacular to help on anything that has gone wrong or fix the simple problems no matter if he is busy or not he drops everything to help ya out. Keep up the good work buddy.

    Tyler Ford
    12/01/2025
    LMMF SIMPLIFIED WIRING
    3100/3400 harness

    The harness has save a bunch of time on stripping cars and getting me into the money three times this year

    Kai Crain
    12/01/2025
    LMMF SIMPLIFIED WIRING

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