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FAST

FAST Wiring Harness Main LS1LS2L - 301108

FAST Wiring Harness Main LS1LS2L - 301108

Regular price $453.95 USD
Regular price Sale price $453.95 USD
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FAST offers several main harness options to aC-Commodate most customers' needs. The XFI Main Harness is responsible for connecting your XFI ECU to sensors as well as digital dashes, EGT modules, and various optional accessories. The Main Harness also handles communication between the ECU and ignition devices. Main harnesses are available in TPI, LT-1, LS-1 through 9 (including truck/suv designs), Modern Hemi, Carburetor Conversions and even Rear-Engine Dragsters and Boats. FAST also offers Main Harnesses that come terminated on the sensor side but non-terminated on the ECU side to allow for a truely custom fit. All terminals, seals and connectors are available individually, so don't hesitate to try your hand at crafting your own custom harness from start to finish.

This XFI Main Harness is designed to connect engines that feature GM LS style sensors to our XFI ECU.


EPA Status: N/A

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St. Paul Speed & Performance hand selects the brands we offer based on decades of experience in domestic automotive performance and modification. If you ever experience a problem with your order, our representatives are well equipped to help ensure your purchase brings satisfaction.

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    We accept unopened items free of charge, excluding shipping fees.
    Unfortunately, during this time, we can not process opened items that
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