Part # 425550512
Holley Sniper 550-512 EFI Super 1250 4-Barrel Self-Tuning Kit
by
Holley Sniper
$1,843.95
each
Factory Shipped
This part will be shipped by the manufacturer. We estimate this item will ship on or before August 12th.
Add to a list
Share
Select a vehicle to verify Fitment
Select Vehicle
Product Summary
Universal Fit, Throttle Body Injection Style, Gold
See more details
Key Specs
| MFG. Part # | 550-512 |
| Brand | Holley Sniper |
See more specs
Need To Know
This Product Will Ship Free
Shipping Policies & FAQsNeed help?
855.313.9176Quick and Easy Returns
Return PolicyDetails
Details
Want to convert your blow thru carbureted turbo engine to EFI? Well take a look what Holley has for you! The Super Sniper 4150 EFI systems features 8, 100LB/HR fuel injectors capable of supporting up to 1250 HP on forced induction or nitrous applications. Toss that nitrous controller away because the Super Sniper also has full nitrous control built-in! Every Super Sniper EFI system also comes with a USB to CAN tuning cable, as well as free downloadable Sniper EFI software to give you unlimited control of your engine.
- 1250 HP version features eight 100 Lb/Hr Injectors (Forced Induction)
- The 800 CFM Main Body will support 700 Horsepower Naturally Aspirated
- Compatible with Draw thru or blow thru forced induction applications
- Built-in Single stage progressive nitrous control
- Programmable inputs and outputs
- Integrated ignition timing control for precise timing curves
- Only 4 Wiring Connections Required! (Battery +, Battery-, Switched Ignition & RPM)
- Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI) for N/A or Nitrous applications
- Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI
- 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
- 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 service
- Included clamp-on oxygen sensor kit ensures a leak-free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
- Throttle body mounted ECU – no extra boxes to mount
- USB to CAN Communication cable included for easy laptop tuning of advanced controls
- Compatible with Holley EFI analog gauges and electronic dashes
Charts
Guides & Documents
CARB Warning
For race/ off road use or for use on pre-1966 vehicles.
CARB Warning
For race/ off road use or for use on pre-1966 vehicles.
Specifications
Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 550-512 |
| Brand | Holley Sniper |
| GENERAL | |
| Carburetor Flange Type | 4-Barrel Square Bore |
| Injection Style | Throttle Body |
| User Tunable | Yes |
| Self Tuning | Yes |
| Injectors Included | Yes |
| Injector Size | 100 lbs./hr. |
| Intake Manifold Included | No |
| Metering Style | Speed density |
| EGR | No |
| CFM | 800 CFM |
| Throttle Body Included | Yes |
| Throttle Body Material | Cast Aluminum |
| Throttle Body Finish | Gold |
| Venturi Quantity | 4 |
| Fuel Pump Included | No |
| Fuel Rails Included | No |
| Calibration Module Included | Yes |
| ECM Included | Yes |
| Wiring Harness Included | Yes |
| Fuel Pressure Regulator Included | Yes |
| Distributor Included | No |
| MAP Sensor Included | Yes |
| IAC Motor Included | Yes |
| IAT Sensor Included | No |
| TPS Sensor Included | Yes |
| Emission Code | 3 |
| Use with Power Adder | Yes |
| Venturi Diameter | 44.45mm |
| Max Horsepower Rating | 1250 |
| Throttle Body Style | Throttle Body Injection (TBI) |
| Throttle Body Barrels | 4-Barrel |
| GTIN Code | 090127039656 |
| Sold in Quantity | Kit |