Holley EFI 550-605N HP EFI ECU & Harness Kits

Unterminated Universal Harness, Includes NTK Oxygen Sensor;<br><br>Looking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and ignition of your engine along with additional controls for NOS, boost, or water meth.;

• Optional 5.7" full-color touchscreen LCD allows easy on-the-fly tuning,data-logging or can be used as an easy to see graphical gauge panel
• Eight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies
• Eight channel Distributorless Ignition (DIS)outputs capable of directly driving "Smart" ignition coils or Holley DIS coils. Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module
• Plug and Play control of factory 24x and 58x LSx engines
• Integrated single channel wide band oxygen sensor control. Works with common O2 sensors
• Internal data-logging standard with a huge 2GB of memory
• 4 Stage progressive nitrous control
• Turbo boost control
• Integrated Water/Methanol injection control
• Self-tuning fuel table strategy greatly simplifies tuning process
• Individual cylinder fuel and spark control allows you to unlock your engine's potential
• Works with 4, 6, 8 cylinder engines
• Unique lb/hr based fueling strategy greatly simplifies and commonizes tuning
• Advanced idle, closed loop, and enrichment strategies allow for very stable operation
• ECU is fully potted and can be mounted in the engine compartment or interior
• Sealed automotive and marine grade connectors
• Allows for use of common OEM sensors as well as customer sensor calibration input
• Ignition Plug and Play with 24x and 58x LSx engines, factory HEI, TFI, magnetic and hall effect trigger, and other ignition systems. New plug and play applications in process.
• Custom settings can be configured to allow many other applications
• 1-5 Bar MAP sensor capability