PSI (Performance Systems Integration) based in Brick, NJ specializes in providing Standalone Wiring Harnesses and conversion parts for various engine types such as LS, LSX, LT, Vortec, and more. With over 25 years of combined experience, their products are crafted in the USA using top-quality materials. Each harness is meticulously assembled, featuring high temp cross-linked polyethylene wires and OEM quality terminals and connectors.
The innovative layout of PSI's standalone harnesses simplifies installation, setting a standard in the LS Swap industry. To ensure utmost quality, every harness undergoes rigorous testing for functionality and accuracy. Customers can rely on PSI's excellent customer service available five days a week via phone and 24/7 via email. The company prides itself on prompt shipping, with most in-stock harnesses shipping within 1-3 business days.
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