Holley 550-510-3XX Sniper 2 EFI Basic Kit Features:

• Four wire connection: Battery+, Battery-, Switched Ignition, and RPM
• Simple calibration wizard to create a base map and begin self-tuning - No laptop required
• Supports up to 650 horsepower naturally aspirated or 575 horsepower power adder applications
• Integrated kick down provisions for GM TH350/400, 200-4R/700R4 and Ford C4/C6 transmissions
• The wiring harness exits from the rear of the throttle body for a clean, "hidden" appearance
• Inputs and outputs: (2) ground inputs, (2) ground outputs, (1) TPS output - 0-5 V, and (1) tachometer output
• Onboard contactless magnetic TPS sensor for accurate reading
• Next-generation ECU for improved RF noise and interference resistance for compatibility with classic car wiring, noisy alternators, or faulty plug wires
• Redesigned throttle shaft and plate geometry for a smoother throttle feedback
• Redesigned injector connector for improved reliability
• Plug-and-play HyperSpark distributor support for integrated timing control
• iOS or Android-based cell phone connection compatibility for a wide variety of tuning and gauge display interfaces
• CAN1 and CAN2 mil-spec-style M8 positive lock connector for the latest in CAN bus technology
• Primary to secondary cast-in fuel rail crossover
• Bosch LSU 4.9 wideband oxygen sensor (O2) for real-time fuel map learning
• Clamp-on oxygen sensor kit for a leak-free oxygen sensor installation
• Compatible with the Sniper EFI Ecosystem including plug-n-play Hyperspark Ignition systems, complete fuel systems, multiple displays, and more

Holley 550-510-3XX Sniper 2 EFI Basic Kit Note:

• Nitrous Control Not Supported In Sniper 2 EFI Software

Find Your Compatible Ignition Distributor Here: Holley Sniper EFI HyperSpark Distributors (each sold separately)

FAQ

What is the difference between Sniper and Super Sniper EFI?

• The Holley 550-510-3XX Sniper 2 EFI offers advanced features, while the Super Sniper provides additional performance enhancements like integrated boost control for more power.

How much HP can a Sniper EFI handle?

• The Holley 550-510-3XX Sniper 2 EFI is designed to handle a wide range of performance levels, supporting your engine with reliable fuel injection for enhanced power.

Will Holley Sniper EFI increase fuel mileage?

• Yes, the Holley Sniper 2 EFI optimizes fuel delivery, enhancing combustion efficiency and potentially improving fuel mileage along with overall engine performance.

Do you need a fuel pressure regulator with Holley Sniper EFI?

• The Holley 550-510-3XX Sniper 2 EFI includes a built-in regulator, ensuring proper fuel pressure and eliminating the need for an external regulator, simplifying installation.

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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