Holley Sniper 2 EFI with Return Style Drop-In Module; Polished (Universal; Some Adaptation May Be Required)

Description

High-Performance EFI Conversion. The Holley Sniper 2 EFI with Polished Finish is an advanced self-tuning electronic fuel injection system designed to replace traditional carburetors on V8 engines. It improves drivability with features such as easy cold starts, smooth throttle response, and real-time fuel map learning, enhancing power delivery and fuel efficiency for classic vehicles without emissions control.

Construction And Appearance. This EFI system features a polished finish for a shiny and modern look while ensuring durability. The throttle bodies are serialized for quality assurance, and the unit incorporates a cast-in fuel crossover for balanced fuel delivery. Hidden harness wiring exits from the rear of the throttle body for a clean engine bay aesthetic. Included is a genuine Bosch wideband oxygen sensor to maintain precise fuel control.

Installation. Installation is designed to be straightforward and suitable for at-home installation with basic tools. The system requires only four main wiring connections, simplifying the wiring typically associated with EFI retrofits.

Warranty. The product comes with a standard two-year warranty, extendable through product registration.

Application. Fits universal applications with some adaptation required. This EFI system is intended for use on non-emissions controlled vehicles and is not legal for installation on emissions-controlled vehicles.

Holley 550-510-3XR

CA Residents: WARNING: Cancer and Reproductive Harm

• Optional Power Distribution Module Isolates EFI And Ignition Wiring Into One Location (Sold Separately)
• Slide Stripped Wire Ends Under Positive Lock Connector And Tighten Set Screw
• Battery And Switched 12-Volt Source Powers The PDM And EFI
• Self-Tuning System With Easy Setup Wizard Requires No Laptop Or Tuning Experience
• Designed For Common 4-Barrel (4150 Flange) Carburetors
• Onboard Contactless Magnetic TPS Sensor Provides Accurate Readings
• Clamp-On Oxygen Sensor Kit Ensures Leak Free Installation With Stainless Steel Clamps And Flange
• Integrated Transmission Kick Down Provisions For GM And Ford Applications
• Hidden Harness Wiring Exits From Rear Of Throttle Body For Clean Appearance
• Throttle Bodies Serialized For Improved Service And Warranty
• Four Wiring Connections Required: Battery+, Battery-, Switched Ignition, And RPM
• Includes Bosch LSU 4.9 Wideband Oxygen Sensor For Real-Time Fuel Map Learning
• Cast-In Fuel Crossover Between Primary And Secondary Fuel Rail
• Main Harness Supports Plug-And-Play HyperSpark Distributor For Timing Control
• Enhanced ECU With RF Noise Resistance For Old Car Wiring Environments
• Compatible With Complete EFI Ecosystem Including Ignition, Fuel, And Display Systems
• Inputs And Outputs Include Ground Inputs And Outputs, TPS Output, And Tach Output
• Supports Up To 650hp Naturally Aspirated Or 575hp Boosted With Four 100 lb/hr Injectors
• M8 Positive Lock Connector Provides Robust CAN Bus Connection
• Redesigned Throttle Shaft And Plate Geometry For Smoother Throttle Feel
• Fits Universal Applications; Some Adaptation May Be Required