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Sniper 2 EFI Upgrade Kit - Black Base upgrade kit without fuel system
Sniper 2 EFI Upgrade Kit - Black Base upgrade kit without fuel system
SKU: 550-511-3AX
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Overview
Features:
- Main Features
- Update your Sniper EFI to the new, improved Sniper 2 in less than one hour!
- Eliminates the need to rewire your existing Sniper EFI installation - one step, plug and play upgrade to a Sniper 2 throttle body
- Improve your ride with the benefits of Sniper 2, including wireless connectivity (coming late 2023), smoother throttle feel, improved RF interference resistance, hidden wiring harness and more
- Four total kits available – polished and black, with or without external fuel pressure regulator (required for Sniper 2)
- Reuses existing coolant temperature and wideband oxygen sensors
- All new design – the #1 EFI Conversion just got better!
- Supports up to 650hp naturally aspirated or 575hp on boost with four 100 lb/hr injectors
- Next generation ECU features improved RF noise and interference resistance (stands up to old car wiring, noisy alternators, faulty plug wires)
- Redesigned throttle shaft and plate geometry for a smoother throttle feel
- Sniper 2 is Part of the Sniper EFI Complete Ecosystem
- Sniper 2 is compatible with the complete Sniper EFI Ecosystem that includes plug-n-play Hyperspark Ignition systems (coil, ignition box and distributor), fuel systems (fuel lines, fuel pump hangers), multiple displays and more
- Available with fuel system kits: that include an adjustable external regulator, fittings, and a 3’ section of fuel hose, allowing you to easily mount your regulator in the engine bay
- Additional Features
- (NEW) Integrated transmission kick down provisions for GM TH350/400, 200-4R/700R4 and Ford C4/C6 applications
- (NEW) “Hidden Harness” wiring harnesses exits from the rear of throttle body for a clean appearance
- (NEW) Inputs and outputs consist of: 2x Ground Inputs, 2x Ground Outputs, 1x TPS output (0-5v), and 1x Tach Output
- (NEW) Redesigned injector connector for improved reliability
- (NEW) Onboard contactless magnetic TPS sensor ensures an accurate TPS reading
- (NEW) Next Generation mil-spec style M8 positive lock connector for CAN1 and CAN2 provides the latest in CAN bus technology for a simple yet robust connection
- (NEW) Cast-in fuel crossover from the primary to secondary fuel rail
- (NEW) Sniper 2 throttle bodies are serialized in house, which provides each unit a birth certificate for an improved customer service and warranty experience in the event of any unit needing to be inspected
- Patent Pending
Specs
Accelerometer Support No
Boost Control No
Brand Holley Sniper EFI
CAN-BUS Support Yes
Category Air and Fuel Delivery
CFM 800
Coast Guard Approved No
Coil Per Cylinder Ignition Support No
Datalogging Support Yes
Distributor Included No
Dry Nitrous Control No
e85 Support No
EGT Support No
Emission Code 3
Finish Black
Flange Style 4150
Forced Induction Support Yes
Fuel Filter Included No
Fuel Hose Included No
Fuel Injectors Included Yes
Fuel Pressure 58.5 PSI
Fuel Pressure Regulator No
Fuel Pressure Regulator Included No
Fuel Pump Included No
Fuel System Not Included
Grade Type Performance
Height 3.28"
Ignition Timing Control Yes
Individual Cylinder Fuel Corrections No
Injector Size 100 lb/hr @ 58.5 PSI
Inlet / Outlet Size 9/16-18 Female O-Ring (AN 6)
Intake Manifold Included No
Knock Retard Support No
MAP Sensor 2 Bar
Max Horsepower Rating 650 Naturally Aspirated
Model 4150 EFI Conversion Throttle Body
Multi-Stage Nitrous Control No
Power Distribution Module No
Product Type Sniper EFI
Progressive Nitrous Control No
Self-Tuning Yes
Throttle Position Sensor Included Yes
Traction Control Support No
Transmission All
User Interface 3.5 in Handheld
User-Tuneable Yes
Warranty Two Year Standard, Extended Via Product Registration
Wet Nitrous Control No
UPC 090127843659
Part Number 550-511-3AX
Emissions
This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles.
The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:
- 1965 and older U.S. manufactured California Certified vehicles
- 1967 and older U.S. manufactured Federally Certified vehicles
- 1967 and older Foreign manufactured vehicle
WARNING: It is against the law to install this part on an Emissions Controlled Vehicle
The following vehicles are considered Emissions Controlled Vehicles:
- 1966 and newer U.S. manufactured California Certified vehicles
- 1968 and newer U.S. manufactured Federally Certified vehicles
- 1968 and newer Foreign manufactured vehicle


