Holley Efi Pwm Alternator Harness - 558-475
Plug and play Holley EFI alternator harnesses for late model engines with Pulse Width Modulated alternators. This includes most 2007+ GM engines and most 2005+ Ford engines.
Plug And Play With Holley EFI And Terminator X Main Harnesses; Designed For Use With Late Model OEM Alternators; Include Detailed Instructions For Software Configuration
Holley is quickly becoming The New Standard In EFI! Holley?s HP ECU is standard equipment on the 2013/2014 Chevrolet COPO Camaro and Holley?s EFI throttle body powers every NASCAR Sprint Cup Series team.
