The #1 EFI conversion system just got better. Sniper 2 EFI is a self-tuning, easy-to-install conversion for common 4-barrel (4150 flange) carburetors, built to be installed at home with limited tools and Holley's installation manuals and videos. The 5 in. handheld setup wizard builds a base tune from a few simple questions about the engine — no laptop required.
Key Features:
- Next generation mil-spec-style M8 positive-lock connector for CAN1/CAN2 wiring
- Hidden-harness wiring exits from the rear of the throttle body for a clean appearance
- Onboard contactless magnetic TPS sensor for accurate throttle position readings
- Next generation ECU with improved RF noise and interference resistance
- Integrated transmission kick-down provisions for GM TH350/400, 200-4R/700R4 and Ford C4/C6
- Cast-in fuel crossover from the primary to secondary fuel rail
- Only 4 wiring connections required: Battery+, Battery-, Switched Ignition, and RPM
- Main harness includes plug-and-play HyperSpark distributor support
- 5 in. full-color LCD touchscreen handheld for setup, tuning, and gauge displays
- Supports up to 650 hp naturally aspirated with four 100 lb/hr injectors
- Sniper 2 throttle bodies are individually serialized for improved warranty/service tracking
Specifications:
- Product Type: Sniper EFI
- Flange Style: 4150
- Finish: Black
- CFM: 800
- Max Horsepower Rating: 650 Naturally Aspirated
- Injector Size: 100 lb/hr @ 58.5 PSI
- Fuel Pressure: 58.5 PSI
- Fuel System: Not Included
- Power Distribution Module: No
- Distributor Included: No
- MAP Sensor: 2 Bar
- User Interface: 5 in. Handheld
- Transmission Compatibility: All
- Height: 3.28 in.
- Warranty: Two Year Standard, Extended Via Product Registration
- Part Number: 550-511-5XX
Nitrous control is not supported in Sniper 2 EFI software.
FAQ
Does the 550-511-5XX include a fuel system or PDM?
No, this base kit includes neither a fuel system nor the Power Distribution Module — an external fuel pump and pressure regulator set to 58.5 PSI are required.
How much horsepower can this kit support?
Up to 650 hp naturally aspirated with four 100 lb/hr injectors.
How is this kit tuned?
The 5 in. handheld runs a setup wizard that asks a few questions about the engine and builds a base tune, then the system self-tunes with no laptop needed.
Is nitrous control supported?
No, nitrous control is not supported in Sniper 2 EFI software.
How many wiring connections are required?
Only 4: Battery+, Battery-, Switched Ignition, and RPM.
