Holley EFI HP Smart Coil Ignition Harness

For use with Holley
HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart Coils. They plug into Holley LSx plug and play main harnesses if one wants to replace factory LSx coils with Holley HP Smart Coils. If using a non-LSx main harness, purchase PN 558-307 for connectors, wiring, terminals to connect directly to a Holley HP or Dominator ECU FeaturesBolt on 2x4 4150 Flange Carburetor ReplacementSupports up to 1500 HP Naturally Aspirated or 1250 HP Forced Induction with Eight 100 Lb/Hr InjectorsInternal 1bar MAP sensor, built into the Terminator X ECUExternal fuel pressure regulator required, set to a base pressure of 58.5 PSI, such as Holley part # 12-886Integrated ignition timing controlHigh Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge DisplaysSimple Calibration Wizard (answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required!Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable serviceIncluded weld-in O2 sensor bung for the exhaust ensures a leak free oxygen sensor installationPlug and play with Holley EFI Accessories, such as the 12.3” and 6.86” Pro Dash; CAN EGT; and Digital Analog style EFI gauges Available in 3 finishes: Shiny, Black, and Gold