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Features, Description, Q&A
This harness is standalone and is not intended to replace the OEM engine wiring. Standalone harnesses are intended to run the designated engine & transmission only, generally when swapped into another vehicle.
Painless LS swap wiring harnesses make getting your engine swap wired a simple task!
This harness is designed for the 1998-2002 LS1 mechanical throttle body engines using a 1999+ LS1 / LS6 ECM with a 4L60E/4L65E/4L80E automatic or
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov