Availability
Holley Super Sniper EFI Stealth 4150 Fuel Injection Systems
4 Customer Reviews
Features and benefits include:
* Compatible with draw-through or blow-through forced induction applications
* 2 Bar MAP sensor
* Integrated ignition timing control
* -6AN fuel inlets
* High-resolution full color touchscreen for initial setup, tuning, and gauge displays
* Simple calibration wizard--answer a few questions about your engine and it c
Features and benefits include:
* Compatible with draw-through or blow-through forced induction applications
* 2 Bar MAP sensor
* Integrated ignition timing control
* -6AN fuel inlets
* High-resolution full color touchscreen for initial setup, tuning, and gauge displays
* Simple 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
* Three programmable 0-5 V sensor inputs for oil/fuel/dome or nitrous pressure or other critical information
* Six programmable ground outputs, five programmable ground inputs. These can provide the ECU with an input to turn on function, such as an ignition timing
* One +5 V reference output, +5 V power supply for 0-5 V sensors, one sensor ground supply for 0-5 V sensors
* Throttle body mounted ECU--no extra boxes to mount
* Only 4 wiring connections required--battery +, battery -, switched ignition, and rpm
* Required external fuel pressure regulator, 12-886 is recommended
* OEM-style TPS/IAC, for years of dependable service
* Included clamp-on oxygen sensor kit for 2.250 in. exhaust ensures a leak-free oxygen sensor installation, with stainless steel T-bolt clamps and a stainless steel (weldable) oxygen sensor flange
Showing In Stock Items. Show All 1 Items.
Fuel Injection Systems, Sniper EFI, Stealth 4150, 1250 HP Max, Throttle Body, Black, 4150 Flange, Injectors, Wiring Harness, Tuner, Kit
Part Number: SNE-550-877
Estimated Ship Date: Monday 1/26/2026
Estimated Ship Date: Monday 1/26/2026
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