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Holley Sniper 2 EFI - Shiny Returnless Style Drop-In Module - Without PDM - 3.5 in. Handheld
Holley Sniper 2 EFI - Shiny Returnless Style Drop-In Module - Without PDM - 3.5 in. Handheld
SKU: 550-510-3XD
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Overview
Features:
- Main Features
- Only four wiring connections required: Battery+, Battery-, Switched Ignition, and RPM
- Supports up to 650hp naturally aspirated or 575hp on boost with four 100 lb/hr injectors
- Calibration wizard only requires that you answer a few simple questions about your engine to create a base map and begin self-tuning – No laptop required
- (NEW) Redesigned throttle shaft and plate geometry for a smoother throttle feel
- (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
- Sniper 2 is Part of the Sniper EFI Complete Ecosystem
- (NEW) Redesigned injector connector for improved reliability
- 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
- (NEW) Main harness includes plug-and-play HyperSpark distributor support, for integrated timing control, making your ignition setup hassle free
- (NEW) Onboard contactless magnetic TPS sensor ensures an accurate TPS reading
- (NEW) Adaptors for other ignition types sold separately: 558-329 CD Box to Sniper 2, 558-330 MSD Pro Billet / Crank Trigger to Sniper 2
- (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
- All new design – the #1 EFI Conversion just got better!
- (NEW) Optional Power Distribution Module (PDM) further simplifies wiring, especially when used in conjunction with an ignition system
- (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
- Available with fuel system kits: a complete fuel system consisting of: 20 ft. of 3/8 in. Vapor Guard Fuel Hose, Fuel Pump, fuel pressure regulator, filters, necessary hardware, and bulkhead fitting to return fuel into the tank
- The included genuine Bosch LSU 4.9 wideband oxygen Sensor provides real-time fuel map learning
- Additional Features
- 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
- (NEW) Integrated transmission kick down provisions for GM TH350/400, 200-4R/700R4 and Ford C4/C6 applications
- 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
Distributor Included? No
Dry Nitrous Control No
e85 Support No
EGT Support No
Emission Code 3
Finish Shiny
Flange Style 4150
Forced Induction HP@60PSI 575
Forced Induction Support Yes
Fuel Filter Included No
Fuel Hose Included No
Fuel Injectors Included Yes
Fuel Pressure 58.5 PSI
Fuel Pressure Regulator Included No
Fuel Pump Included No
Fuel System Universal Returnless Drop In Module
Grade Type Performance
Height 3.28"
Hyperspark Ignition Kit No
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
Naturally Aspirated HP@60PSI 650
PDM 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 090127821695
Part Number 550-510-3XD
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





