• HOURS of Operation

    Open Monday - Friday 9A-4:30P EST

    QUESTIONS? GIVE US A CALL! 1 (765) 378-4908

    We're closed on major holidays.

    Closed June 7th, 2024.

  • Standard order lead time for STANDALONE WIRING HARNESSES is estimated to be 10-12 weeks from date of purchase.

    Need is sooner? Give us a call to discuss expediting. Limited slots available.

    All other items typically ship within 3-5 business days unless specified otherwise.

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LS and LT Retrofit Specialists
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Home > FAQ


Do you make a harness for my specific vehicle?

No. All of our harnesses are "standalone" meaning they are not vehicle specific. We provide speedo and tach output wires from the ECM and is up to the end user to cross them over into their vehicle's gauge setup for functionality. There are only 3 wires you need to hook up to make your LS swap come to life with a Speartech harness - battery, ignition switch, and fuel pump! We make it as simple as possible, and all of our wires are labeled for easy hook up.

Do you ship outside of the USA?

Absolutely! We ship all over the world on a regular basis. It just requires the order to be placed by email or over the phone. When you're ready to place an order, email us at info@speartech.com or call (765) 378-4908. Shipping options to customers outside of the USA are Fed Ex or UPS.

Do you make harnesses for any other engines?

We only support GM LSx and new Gen 5 V8 platforms. We do not support any other types of engines.