Holley Self-Tuning EFI Kit Super Sniper Stealth 4150 1250HP Self-Tuning Black Finish
Highlights
- Bolts onto 4150 flange
- Throttle body mounted ECU
- No extra boxes to mount
- Supports up to 1250HP
Holley Super Sniper Stealth Self-Tuning 1250HP Self-Tuning EFI Kit with Black Finish for 4150 flanges.
These Stealth 4150 EFI Systems (550-877) will support 650HP naturally aspirated, or 1250HP forced induction engines. These systems are completely self-learning capable, improving engine reliability, performance, responsiveness, and efficiency.
Features and Benefits:
- Programmable inputs and outputs
- Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI
- Air entry is machined to fit most stock style air cleaners with air cleaner locator provisions.
- Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
- Integrated ignition timing control
- High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
- Simple Calibration Wizard - NO laptop required!
These 4150 EFI Systems go a step further than standard systems. These Stealth kits add full data logging, allowing you to add the sensor of your choice to the 8-pin connector for data logging. This will allow you to dial in your tune to perfection. If your project uses a GM TH350/400, 200R4/700R4, or Ford C4/C6, this kit provides kick-down provisions.
Please Note: External fuel pressure regulator required, set to a base pressure of 58.5 PSI.
Vehicle Fitment:
Mustang 1965-1985
Bronco 1966-1977
F100 1948-1979
C10 1960-1987
California Residents: Proposition 65 Warning
Related Categories: Mustang Parts, Mustang Engine, Ford Bronco Parts, Ford F-100 Parts, Bronco Engine
Only for use on pre-pollution controlled vehicles: This product can be used on vehicles that were manufactured before emissions control regulations were imposed. Pre-pollution vehicles are defined as:
- 1965 and older U.S. manufactured California certified vehicles
- 1967 and older U.S. manufactured federally certified vehicles
Vehicle Fitment
This product will fit the following Bronco years:
This product will fit the following C10 years:
- 1960,
- 1961,
- 1962,
- 1963,
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
- 1973,
- 1974,
- 1975,
- 1976,
- 1977,
- 1978,
- 1979,
- 1980,
- 1981,
- 1982,
- 1983,
- 1984,
- 1985,
- 1986,
- 1987,
This product will fit the following F-100 years:
- 1948,
- 1949,
- 1950,
- 1951,
- 1952,
- 1953,
- 1954,
- 1955,
- 1956,
- 1957,
- 1958,
- 1959,
- 1960,
- 1961,
- 1962,
- 1963,
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
- 1973,
- 1974,
- 1975,
- 1976,
- 1977,
- 1978,
- 1979,
This product will fit the following Mustang years:
-
-
-
-
-
-
Holley EFI Conversion Master Kit Sniper Stealth 4150 Self-Tuning Shiny Finish$1,567.95 MSRP $1,960.95