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Optimize your LS engine swap with our high-quality adapter harnesses, designed to facilitate seamless integration and reliable performance. Our extensive selection includes injector adapter sets, throttle body wiring adapters, sensor extensions, and plug-and-play solutions, all tailored to ensure compatibility and ease of installation.
Whether you need to adapt Multec harnesses to EV6 injectors or convert a 4L60E transmission to a 4L80E, our adapter harnesses provide the perfect solution to streamline your LS swap and enhance overall functionality.
Adapter harnesses simplify the integration of various components, ensuring compatibility and reducing the complexity of the installation process, leading to a more efficient and reliable LS swap. Adapter harnesses are plug-and-play, requiring no cutting or splicing meaning you’ll be up and running faster with more reliable electrical connections.
Ensure that the injector type and harness type are compatible with your engine setup, and choose the appropriate adapter harness to facilitate a secure and efficient connection.
If you need to extend the reach of a component's wiring, choose an extension harness. If you need to connect components with different types of connectors, select an adapter harness for the appropriate conversion.
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Looking for an Affordable, In Stock, Plug and Play wiring harness for your LS Swap? PSI sells Standalone Wiring Harnesses for GM Gen II, III, IV, & V LS/LT based engines and transmissions. These harnesses include the Gen II LT1/LT4, Gen III (24x) LS1/LS6 and Vortec Truck Engines as well as Gen IV (58x) LS2, LS3, LS7, & Vortec and GEN V LT / ECOTEC3 Engines. All PSI Harnesses are Made in the USA. In addition to wiring harnesses, PSI carries Holley Products, Vintage Air A/C, Dakota Digital Gauges, HPTuners and PCM programming, Fuel Pump Kits, Engine Sensors, Extension Harnesses, Replacement GM connector pigtails and a complete line of hardware to complete your conversion needs!
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2029 Route 88
Brick, NJ 08724
ph. 732-276-8589 Mon-Fri: 8:00am to 6:00pm ET
customerservice@psiconversion.com
sales@psiconversion.com
techsupport@psiconversion.com