{"product_id":"holley-efi-hp-efi-ecu-harness-kits-550-603","title":"Holley EFI HP EFI ECU \u0026 Harness Kits - 550-603","description":"Looking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more. Got a stock LS engine? Simply download a base map and you're on your way. Got a turbocharged, nitrous fed LS engine on water\/meth? This HP EFI kit can control that too!\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eSimple Installation - Plug and Play control of GM LS2\/LS3\/LS7 engines. Just plug the harness into your factory sensors, wire the power and grounds and you are ready to take complete control of your LS engine\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eIndustry Leading Self Tuning Fuel Strategy - means less time tuning and more time enjoying the power of your LS vehicle\u003c\/li\u003e\n\u003cli\u003eFor a full list of advanced features such as boost, nitrous, water\/meth, individual cylinder control and more click the document icon under the product image!\u003c\/li\u003e\n\u003cli\u003eEasy To Use - Laptop programmable ECU includes a variety of base maps that will have you hitting the cruise or track in no time\u003c\/li\u003e\n\u003cli\u003eECU is certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements for Ignition Protection \u0026amp; Fire Resistance\u003c\/li\u003e\n\u003cli\u003eKit includes ECU, harness, communication cable, software, USCAR (EV6 Style) injector connectors, and Bosch wideband O2 sensor, designed to be used with GM LS2\/LS3\/LS7 engines with factory GM coils and a 58 tooth crank sensor\u003c\/li\u003e\n\u003cli\u003eOptional plug and play hand-held programmer, 5.7\" touch screen and digital gauges are available for ultimate control and vehicle monitoring\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003eMore Functionality - Provides significantly more functionality than OEM or other competitive ECUs (boost control, nitrous control, water\/meth injection, plus a host of additional inputs and outputs to control fans, pumps, relays etc.)\u003c\/li\u003e\n\u003cli\u003eIdeal For Everything - including stock 5.3L engine swaps or all out, 3,000+ horsepower race cars that need a simple and powerful ECU and harness solution\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Specifications:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details:\u003c\/strong\u003e GM LS2\/3\/7 (58x crank sensor) with USCAR (EV6 Style) connectors on injector harness, Includes Bosch Oxygen Sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccelerometer Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAN-BUS Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Per Cylinder Ignition Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrank Reluctor:\u003c\/strong\u003e 58x\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatalogging Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ee85 Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGT Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForced Induction Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Filter Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Hose Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Injectors Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pressure Regulator Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pump Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Timing Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e GM LS 58x\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Cylinder Fuel Corrections:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e USCAR (EV6)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Manifold Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnock Retard Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Hardware Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Stage Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Conversion Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HP EFI Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgressive Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Position Sensor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraction Control Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Tuneable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWet Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Notes:\u003c\/h3\u003e\n\u003cp\u003eECU is   certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements   for Ignition Protection \u0026amp; Fire Resistance. Holley HP EFI systems are   equipped with 4 programmable inputs and 4 programmable outputs that are ideal   for most vehicles with a single power adder. This feature allows the user to   configure the system to support a wide range of controls including boost   control, progressive nitrous, water\/meth injection, speed inputs, fuel pump   control, AC inputs, timing retard inputs and various other uses. When   selecting an ECU, users need to ensure their planned controls can be run with   the 4 inputs and 4 outputs as certain combinations may use more I\/Os than are   available. If more I\/Os are required, users should choose the Dominator VMS.   Software and firmware updates can be downloaded here for free.\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":49715249479918,"sku":"HLY-550-603","price":2849.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/9110\/6798\/files\/dc68d9dd879387e0dee28275aadcf70bcb14e0d8.jpg?v=1791567414","url":"https:\/\/elmosspeedshop.com\/products\/holley-efi-hp-efi-ecu-harness-kits-550-603","provider":"Elmo's Speed Shop","version":"1.0","type":"link"}