Holley EFI Engine Wiring Harness

558-134

EXTENDED LENGTH 58X LS MAIN HARNESS;58x;;LS2/3/7+ (58x/4x) Engine Main Harness Extended Length;LS2/3/7+ (58x/4x) Engine Main Harness for HP EFI & Dominator EFI;These harnesses are designed to fit most 24x and 58x LS engines, from 1997-2012. They are a perfect fit for installers wanting to mount the any Holley EFI ECU inside of the passenger compartment where it is away from the elements, and easy to access.;Plug and play with Dominator, HP, Terminator X and Terminator X Max ECUs;Designed for use on 24x / 1x and 58x / 4x LS engines;22" Extended length allows you to mount the ECU in a wide variety of locations, such as on a roll bar, or under the passenger seat