phone: 888-314-7772


Holley Sniper 2 Efi Conversion System

Write a Review
Usually ships within 24 hours.
Calculated at Checkout
  • Free Ground Shipping

  • 30-Day Returns

  • Safe Payments

  • Top Tier Brands

Experience the enhanced #1 EFI conversion system – introducing Sniper 2 EFI, a self-tuning, user-friendly EFI conversion designed for common 4-barrel (4150 flange) style carburetors. Building on the success of the original Sniper EFI system, Sniper 2 incorporates 14 new features for a simpler, more reliable, and modern EFI conversion. As part of the comprehensive Sniper Ecosystem, it seamlessly integrates with Hyperspark ignition, complete fuel systems, various user interfaces/dash displays, and more.

A noteworthy addition to Sniper 2 is the optional Power Distribution Module (PDM), an affordable accessory consolidating EFI and ignition wiring into a user-friendly location. With minimal wiring connections – Battery+, Battery-, Switched Ignition, and RPM – this system simplifies the setup process.

Transform your classic into a modern, fuel-injected vehicle with easy cold starts, smooth drivability, and improved fuel economy. Sniper 2 is designed for at-home installation in your garage, supported by Holley's comprehensive installation manual and videos. The user-friendly setup wizard requires answers to a few simple questions about your engine to initiate self-tuning – no laptop or tuning experience necessary.

If you seek a high-performance fuel injection system delivering power, efficiency, and ease of use, Sniper 2 EFI is your ideal choice.

Features: Main Features:

  • All-new design for an improved #1 EFI Conversion experience
  • Only four wiring connections required: Battery+, Battery-, Switched Ignition, and RPM
  • Calibration wizard needs simple answers about your engine for base map creation and self-tuning – No laptop required
  • Supports up to 650hp naturally aspirated or 575hp on boost with four 100 lb/hr injectors
  • (NEW) Next-generation ECU features improved RF noise and interference resistance, standing up to old car wiring, noisy alternators, faulty plug wires
  • (NEW) Redesigned throttle shaft and plate geometry for a smoother throttle feel

Sniper 2 is Part of the Sniper EFI Complete Ecosystem:

  • Compatible with the complete Sniper EFI Ecosystem, including plug-n-play Hyperspark Ignition systems, fuel systems, multiple displays, and more
  • (NEW) Main harness includes plug-and-play HyperSpark distributor support for integrated timing control, simplifying ignition setup
  • (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) Wide variety of tuning and gauge display interfaces: from a 3.5-inch full-color LCD Handheld, 5-inch Digital Dash, or the Bluetooth dongle, connecting to either an iOS or Android-based cell phone
  • (NEW) Optional Power Distribution Module (PDM) further simplifies wiring, especially with an ignition system
  • Available with fuel system kits: a complete fuel system with 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

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 exit from the rear of the throttle body for a clean appearance
  • (NEW) Inputs and outputs include: 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, providing each unit a birth certificate for an improved customer service and warranty experience if inspection is needed
  • The included genuine Bosch LSU 4.9 wideband oxygen Sensor provides real-time fuel map learning
  • 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
  • Patent Pending
Local Pickup Available:
Local Delivery Available:
Additional Handling: