Holley is proud to announce the release of plug and play wiring harnesses to use their HP and Dominator EFI systems with Gen III HEMI engines, including the ’03-’10 5.7 & 6.1L, ’11-present 6.4L “392”, and Gen III 426 crate engines.  These Holley EFI harnesses provide a plug-and-play solution for the main, injector, ignition coil, and drive-by-wire harnesses needed to fire up your Gen III HEMI with Holley EFI control.  Be sure to call Marken Performance to ensure that you get the correct harnesses for your engine.  The harnesses utilize TXL grade copper wiring, factory style terminations, OEM-grade connectors, and high-quality braided wire loom.  With Holley EFI, HEMI owners can take full control of their fuel and spark, as well as power adders such as superchargers, turbos, nitrous, and water/meth injection.  The self-tuning fuel strategies and intuitive software make maximizing the performance from your HEMI-powered vehicle easier than ever. 

  

  

  

  

 

 

  

 

  

 

 

   Holley is proud to announce the release of plug & play EFI harnesses to use Holley EFI on Ford Coyote and Mod Motor platforms.  Holley's plug & play harnesses plug right into your factory sensors, including crank, cam, TPS, coolant, and much more.  This also includes your factory actuators; ignition coils, fuel injectors, and idle air control.  There are also connectors for Holley fuel and oil pressure sensors and expanded inputs and outputs. 4R70W transmission control will also be available soon when using the Dominator ECU, which also allows for plug & play drive-by-wire control as well.