Engine Wiring Harness - Elite - Main Harness - Drive-By-Wire - Terminated - GM LS-Series - Kit

Engine Wiring Harness - Elite - Retrofit - Main Harness - Drive-By-Wire - Terminated - GM LS-Series - Kit

Wiring Harness - Elite - ECU Premium Harness - 8 ft Long - Universal - Kit

Engine Wiring Harness - Big Block Chevy - GM A-Body - Kit

Engine Wiring Harness - Plug-and-Play - Small Block Ford - Each

Upgrade your engine wiring with the Engine Main Harness GM LS Extended Length 24x by HOLLEY. This extended-length EFI wiring harness is designed for Holley HP and Dominator EFI systems, compatible with 24x reluctor wheel setups on GM LS1/LS6 engines...