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    LMMF SIMPLIFIED WIRING

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    • 3800 Engine
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    • TRAILBLAZER
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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 102 reviews
    Love it seems to make car a lot more alive then

    Love it seems to make car a lot more alive then stock ty very much

    Robert Ward
    04/01/2026
    98-05 3800 Supercharged Tuned ECM
    98-05 3800 Supercharged Tuned ECM
    Very good products and very nice people will

    Very good products and very nice people will helpu in anyway u need i really appreciate that u guys care for ur costumers shows alot

    Robert Ward
    04/01/2026
    LMMF SIMPLIFIED WIRING
    Works great easy to hook up and seems to b

    Works great easy to hook up and seems to b working good will find oit more at the end of April

    Robert Ward
    04/01/2026
    4t65e transmission Hotwire
    4t65e transmission Hotwire
    Awesome product fast shipping and excellent

    Awesome product fast shipping and excellent customer service

    Anonymous
    04/01/2026
    99-02 LS Drive-By-Cable Standalone Harness
    99-02 LS Drive-By-Cable Standalone Harness
    Nice and long giving you options on where to

    Nice and long giving you options on where to mount coil packs and giving the wire more clearance from headers

    Shayla Garrett
    03/31/2026
    3100/3400 Extended Crank sensor harness
    3100/3400 Extended Crank sensor harness
    These are great

    These are great. High quality plug wires at a great price

    Shayla Garrett
    03/31/2026
    3100/3400/3800 Extended Length Heavy duty spark plug wires
    3100/3400/3800 Extended Length Heavy duty spark plug wires
    Top of the line

    Parts come as described. Super fast shipping. Good craftsmanship. Top of the line!!

    Shayla Garrett
    03/31/2026
    LMMF SIMPLIFIED WIRING
    Bolts on with no issues

    Bolts on with no issues. Nice product. Worth the money!!! Great price!!

    Shayla Garrett
    03/31/2026
    LMMF Adjustable 3100/3400 throttle bracket
    LMMF Adjustable 3100/3400 throttle bracket
    Works

    Works great

    Ron Haney
    03/17/2026
    1997-2001 GM 2.2 SFI Tuned ecm
    1997-2001 GM 2.2 SFI Tuned ecm

    The harness is a very nice harness

    Bryan
    03/10/2026
    02-05 2.2 Ecotec harness
    02-05 2.2 Ecotec harness
    Good selection of stuff

    Good selection of stuff. Always good quality and fast shipping. And good customer service

    Brian lende Lende
    03/06/2026
    LMMF SIMPLIFIED WIRING
    Looks awesome so far haven't used it yet

    Looks awesome so far haven't used it yet. Bought it as a backup just in case. But great quality

    Brian lende Lende
    03/06/2026
    96-2005 3100/3400 harness ecm bundle package
    96-2005 3100/3400 harness ecm bundle package
    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

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