{"id":4849765777486,"title":"Holley 550-842 Sniper EFI Stealth 4500 Black","handle":"hly550-842-sniper-efi-stealth","description":"\u003cp\u003eIntroducing the Holley 550-842 Sniper EFI Stealth! Wanting to convert your Dragster or Pro-street vehicle to Fuel Injection? Look no further! The Sniper Stealth 4500 EFI system from Holley features Eight 100LB\/HR Fuel Injectors. It is capable of supporting either 800 to 1500 HP naturally aspirated, or 800-1250 HP on forced induction applications.\u003c\/p\u003e\n\u003cp\u003eThis Black Ceramic Finished Sniper Stealth 4500 also features multiple Input and Output options for sensor inputs and switched outputs to control external relays. This system also comes with a USB to CAN tuning cable and free downloadable Sniper EFI Software. This gives you unlimited control of your engine!\u003c\/p\u003e\n\u003ch3\u003eHolley 550-842 Sniper EFI Stealth 4500 Features:\u003c\/h3\u003e\n\u003cul class=\"productpage_list\"\u003e\n\u003cli\u003eSupports up to 1500 HP Naturally Aspirated or 1250 HP Forced Induction with Eight 100 Lb\/Hr Injectors\u003c\/li\u003e\n\u003cli\u003eCompatible with both Draw through and Blow through forced induction applications\u003c\/li\u003e\n\u003cli\u003e2.125” Throttle Plates, Flow 1440 CFM for large cubic inch engines\u003c\/li\u003e\n\u003cli\u003e2.5Bar MAP Sensor\u003c\/li\u003e\n\u003cli\u003eIntegrated ignition timing control\u003c\/li\u003e\n\u003cli\u003eProgrammable launch control via 2-step and timing retard. Both can be triggered by a trans-brake input\u003c\/li\u003e\n\u003cli\u003eGen 3 Ultra Dominator Style 4 Bolt Air Cleaner Flange\u003c\/li\u003e\n\u003cli\u003e-8AN Fuel Inlets\u003c\/li\u003e\n\u003cli\u003eHigh Resolution Full Color Touchscreen for Initial Setup, Tuning, as well as Gauge Displays\u003c\/li\u003e\n\u003cli\u003eSimple Calibration Wizard (Answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required\u003c\/li\u003e\n\u003cli\u003eSelf-tuning ECU means you don’t have to be a computer\/tuning wiz to have EFI!\u003c\/li\u003e\n\u003cli\u003eThe included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides realtime Fuel Map Learn\u003c\/li\u003e\n\u003cli\u003eBuilt-in Single Stage Wet or Dry progressive nitrous control\u003c\/li\u003e\n\u003cli\u003eThree Programmable 0-5V Sensor Inputs for either Oil\/Fuel\/Dome or Nitrous Pressure or other critical information\u003c\/li\u003e\n\u003cli\u003eSix Programmable Ground Outputs, Five programmable ground inputs. These can be used to trigger or control external devices such as nitrous solenoids and boost control solenoids. They can also provide the ECU with an Input to turn on function such as an ignition timing\u003c\/li\u003e\n\u003cli\u003eOne +5v Reference Output - +5V Power Supply for 0-5v Sensors, One Sensor Ground – Ground supply for 0-5v Sensors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOther Features:\u003c\/h3\u003e\n\u003cul class=\"productpage_list\"\u003e\n\u003cli\u003eThrottle body mounted ECU – no extra boxes to mount\u003c\/li\u003e\n\u003cli\u003eOnly 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition \u0026amp; RPM)\u003c\/li\u003e\n\u003cli\u003eRequired external fuel pressure regulator, 12-848 is recommended\u003c\/li\u003e\n\u003cli\u003eCustomizable secondary fuel pump output (TPS, RPM or Boost enabled)\u003c\/li\u003e\n\u003cli\u003eUser friendly Boost Control with handheld adjustability\u003c\/li\u003e\n\u003cli\u003eFree Software included comprehensive datalogging tool to help you maximize the performance of your engine\u003c\/li\u003e\n\u003cli\u003eReal-time datalogging to the included 3.5” Touch Screen, allows you to save information to the SD card without needing a communication cable\u003c\/li\u003e\n\u003cli\u003eProgrammable Target Air Fuel Ratios per Boost level\u003c\/li\u003e\n\u003cli\u003eAdvanced boost control available via free Sniper EFI tuning software, including both Boost vs RPM and Boost vs Time\u003c\/li\u003e\n\u003cli\u003eOEM Style TPS\/IAC, for years of dependable service\u003c\/li\u003e\n\u003cli\u003eIncluded clamp-on oxygen sensor kit ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps as well as a Stainless Steel (Weldable) oxygen sensor flange\u003c\/li\u003e\n\u003cli\u003ePatent Pending\u003c\/li\u003e\n\u003cli\u003eUnited States Coast Guard Approved\u003c\/li\u003e\n\u003cli\u003eCertified to ISO 8846, SAE J1171 Requirements\u003c\/li\u003e\n\u003c\/ul\u003e","published_at":"2020-10-08T14:35:46-05:00","created_at":"2020-10-08T14:35:47-05:00","vendor":"HOLLEY","type":"Fuel Injection Systems","tags":["4500","500","Airflow Rate (cfm): 1440 cfm","Calibration Module Included: Yes","Distributor Included: No","ECM Included: Yes","EFI","EGR: No","Fuel Pressure Regulator Included: No","Fuel Pump Included: No","Holley","IAC Motor Included: No","IAC Motor Included: Yes","IAT Sensor Included: No","Injection Style: Throttle body","Injector Size (lbs\/hr): 100 lbs.\/hr.","Injectors Included: Yes","Intake Manifold Included: No","MAP Sensor Included: Yes","Maximum Horsepower with Gas: 1","Metering Style: Speed density","Multi-Port Fuel Rails Included: No","Oxygen Sensor Included: Yes","Power Adder Compatible: Yes","Quantity: Sold as a kit.","Self Tuning: Yes","Sniper","Stealth","Throttle Body Finish: Black","Throttle Body Included: Yes","Throttle Body Material: Aluminum","Throttle Body Mounting Flange: 4500 Dominator","Timing Control Compatible: Yes","TPS Sensor Included: Yes","Transmission Controller Included: No","User Tunable: Yes","Venturi Diameter (mm): 54.00mm","Venturi Quantity: 4","Wiring Harness Included: Yes"],"price":220395,"price_min":220395,"price_max":220395,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":32666263224398,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"HLY550-842","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Holley 550-842 Sniper EFI Stealth 4500 Black","public_title":null,"options":["Default Title"],"price":220395,"weight":7264,"compare_at_price":null,"inventory_management":"shopify","barcode":"090127045275","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/www.winnerscircle.com\/cdn\/shop\/products\/HLY550-842.jpg?v=1602185747"],"featured_image":"\/\/www.winnerscircle.com\/cdn\/shop\/products\/HLY550-842.jpg?v=1602185747","options":["Title"],"media":[{"alt":"HLY550-842 Sniper EFI","id":8025267863630,"position":1,"preview_image":{"aspect_ratio":1.332,"height":751,"width":1000,"src":"\/\/www.winnerscircle.com\/cdn\/shop\/products\/HLY550-842.jpg?v=1602185747"},"aspect_ratio":1.332,"height":751,"media_type":"image","src":"\/\/www.winnerscircle.com\/cdn\/shop\/products\/HLY550-842.jpg?v=1602185747","width":1000}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003eIntroducing the Holley 550-842 Sniper EFI Stealth! Wanting to convert your Dragster or Pro-street vehicle to Fuel Injection? Look no further! The Sniper Stealth 4500 EFI system from Holley features Eight 100LB\/HR Fuel Injectors. It is capable of supporting either 800 to 1500 HP naturally aspirated, or 800-1250 HP on forced induction applications.\u003c\/p\u003e\n\u003cp\u003eThis Black Ceramic Finished Sniper Stealth 4500 also features multiple Input and Output options for sensor inputs and switched outputs to control external relays. This system also comes with a USB to CAN tuning cable and free downloadable Sniper EFI Software. This gives you unlimited control of your engine!\u003c\/p\u003e\n\u003ch3\u003eHolley 550-842 Sniper EFI Stealth 4500 Features:\u003c\/h3\u003e\n\u003cul class=\"productpage_list\"\u003e\n\u003cli\u003eSupports up to 1500 HP Naturally Aspirated or 1250 HP Forced Induction with Eight 100 Lb\/Hr Injectors\u003c\/li\u003e\n\u003cli\u003eCompatible with both Draw through and Blow through forced induction applications\u003c\/li\u003e\n\u003cli\u003e2.125” Throttle Plates, Flow 1440 CFM for large cubic inch engines\u003c\/li\u003e\n\u003cli\u003e2.5Bar MAP Sensor\u003c\/li\u003e\n\u003cli\u003eIntegrated ignition timing control\u003c\/li\u003e\n\u003cli\u003eProgrammable launch control via 2-step and timing retard. Both can be triggered by a trans-brake input\u003c\/li\u003e\n\u003cli\u003eGen 3 Ultra Dominator Style 4 Bolt Air Cleaner Flange\u003c\/li\u003e\n\u003cli\u003e-8AN Fuel Inlets\u003c\/li\u003e\n\u003cli\u003eHigh Resolution Full Color Touchscreen for Initial Setup, Tuning, as well as Gauge Displays\u003c\/li\u003e\n\u003cli\u003eSimple Calibration Wizard (Answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required\u003c\/li\u003e\n\u003cli\u003eSelf-tuning ECU means you don’t have to be a computer\/tuning wiz to have EFI!\u003c\/li\u003e\n\u003cli\u003eThe included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides realtime Fuel Map Learn\u003c\/li\u003e\n\u003cli\u003eBuilt-in Single Stage Wet or Dry progressive nitrous control\u003c\/li\u003e\n\u003cli\u003eThree Programmable 0-5V Sensor Inputs for either Oil\/Fuel\/Dome or Nitrous Pressure or other critical information\u003c\/li\u003e\n\u003cli\u003eSix Programmable Ground Outputs, Five programmable ground inputs. These can be used to trigger or control external devices such as nitrous solenoids and boost control solenoids. They can also provide the ECU with an Input to turn on function such as an ignition timing\u003c\/li\u003e\n\u003cli\u003eOne +5v Reference Output - +5V Power Supply for 0-5v Sensors, One Sensor Ground – Ground supply for 0-5v Sensors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOther Features:\u003c\/h3\u003e\n\u003cul class=\"productpage_list\"\u003e\n\u003cli\u003eThrottle body mounted ECU – no extra boxes to mount\u003c\/li\u003e\n\u003cli\u003eOnly 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition \u0026amp; RPM)\u003c\/li\u003e\n\u003cli\u003eRequired external fuel pressure regulator, 12-848 is recommended\u003c\/li\u003e\n\u003cli\u003eCustomizable secondary fuel pump output (TPS, RPM or Boost enabled)\u003c\/li\u003e\n\u003cli\u003eUser friendly Boost Control with handheld adjustability\u003c\/li\u003e\n\u003cli\u003eFree Software included comprehensive datalogging tool to help you maximize the performance of your engine\u003c\/li\u003e\n\u003cli\u003eReal-time datalogging to the included 3.5” Touch Screen, allows you to save information to the SD card without needing a communication cable\u003c\/li\u003e\n\u003cli\u003eProgrammable Target Air Fuel Ratios per Boost level\u003c\/li\u003e\n\u003cli\u003eAdvanced boost control available via free Sniper EFI tuning software, including both Boost vs RPM and Boost vs Time\u003c\/li\u003e\n\u003cli\u003eOEM Style TPS\/IAC, for years of dependable service\u003c\/li\u003e\n\u003cli\u003eIncluded clamp-on oxygen sensor kit ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps as well as a Stainless Steel (Weldable) oxygen sensor flange\u003c\/li\u003e\n\u003cli\u003ePatent Pending\u003c\/li\u003e\n\u003cli\u003eUnited States Coast Guard Approved\u003c\/li\u003e\n\u003cli\u003eCertified to ISO 8846, SAE J1171 Requirements\u003c\/li\u003e\n\u003c\/ul\u003e"}