Discontinued--But you have options!
Yes, we were pretty surprised by Holley's decision to discontinue the Sniper 2x4 EFI System as well. We have no idea if they'll resurrect this with the new Sniper 2 throttle bodies. But, recognize that there is another outstanding 2x4 EFI system option at your disposal. Holley is still offering the Terminator X Stealth 2x4 EFI System. Get yours while they are still available.
| ECU | |
| Boost Control | Yes |
| DIS Outputs | None |
| Family | Sniper |
| Fueling Strategy | Speed Density |
| Includes Power Harness | Yes |
| Injector Drivers | Eight |
| Internal Datalogging | No. All datalogging done via external CAN bus device such as 3.5-inch handheld (included), laptop software, or digital display. |
| Knock Control Channels | 0 |
| Nitrous Control | Yes |
| Number of Cylinders | 8 Cylinder (Even Fire Only) |
| User Configurable I/O | Yes |
| User-Selectable MAP Storage | No |
| Water-Methanol Control | No |
| Displays And Controllers | |
| Auto Brightness | No |
| CAN Bus Capable | Yes (Specific to Holley ECUs Only) |
| Case/Bezel Finish | Black |
| Configurable | Monitor dozens of pre-configured metrics provided by the ECU, including sensors, air/fuel ratio, switched outputs, drive-by-wire data, and more. |
| Data Logging | Yes |
| Display Type | LCD |
| Functions | Setup, Monitor, Tuning |
| Gauge/Display Size | 3.5 Inch Rectangular |
| Internal Storage | Yes (SD Card) |
| Touchscreen | Yes |
| Throttle Bodies | |
| Airflow Rate (CFM) | 800 CFM per Throttle Body (at 1.5 Inches Hg) |
| Barrels (BBL) | 4 |
| Gaskets Included | Yes |
| IAC Motor Included | Yes |
| Injectors Included | Yes |
| Style | Throttle Body Injection |
| Throttle Bore Diameter (ea) | 42.86mm |
| TPS Sensor Included | Yes |
| Fuel Injectors | |
| Flow Rate (Lbs / Hr) | 100 PPH |
| Fuel Pressure Regulators | |
| Style | Integrated in Throttle Body |
| Fuel Filters | |
| Mounting Bracket Included | Master Kit Only: No |
| Harnesses | |
| Harness Type | 7-pin Power/Ignition/Fuel Pump, 10-Pin I/O, Wideband O2, Coolant Temp, CAN Bus (All fixed to Throttle Body). Super adds second 8-Pin I/O Harness. |
| Terminated | Yes |
| Crank Timing | |
| Sensor Harness Included | No (Ignition Adapter Only) |
| Sensors | |
| Type | Air Temperature, 2.5 BAR MAP and Throttle Position (Integrated in TB); Coolant Temperature, Wideband O2 |
| General | |
| Also Included | 3.5-inch Touchscreen Display |
| Application | Universal (Requires intake manifold for square bore carburetor or adapter there-to) |
| Color | Standard: Shiny Silver (550-527), Ceramic Black (550-528), or Classic Gold (550-529) Super: Shiny Silver (550-531), Ceramic Black (550-532), or Classic Gold (550-533) |
| Emission Code | 3 |
| Unit of Sale | Kit |
Sniper 4150 2x4 EFI System ***DISCONTINUED***
Connector Harness, Sniper EFI to Holley Dual-Sync Distributor
If you are using a Holley Dual-Sync Distributor with your Sniper EFI System this adapter harness mak..
$45.50 $40.95
Earl's O2 Sensor Weld-In Bung
Ok, so those clamp-on style O2 sensor bungs are cool if you are doing a quick installation and don't..
$9.14 $8.23
10-Pin Connector Kit for Sniper EFI 10-Pin Harness
This 10-pin metripack connector kit lets you create your own custom wiring harness for your Sniper I..
$27.10 $24.39
Clamp-On Oxygen Sensor Bung
Just because you're a decent mechanic doesn't mean that you have a degree in welding--nor does it m..
$47.09 $42.38
Rotor Phasing Kit for Sniper Ignition Control
ECU-controlled ignition timing control is far superior to standard mechanical and vacuum-based ignit..
$62.58 $56.32
Connector Harness, Terminator EFI to Holley HyperSpark Distributor V2
The new Holley HyperSpark was designed to work with the Sniper EFI System with no adapter. But..
$32.73 $35.82
Hyperspark Plug and Play Main Harness
Looking to wire your Holley Sniper and Holley Hyperspark ignition system? With only four flying lead..
$295.84 $268.95
