Sniper EFI 3.5 Touch Screen LCD Controller

The Holley Sniper EFI 3.5 Touch Screen LCD Controller is a dedicated programmer and tuning interface designed for Sniper EFI fuel injection systems. This handheld controller delivers real-time engine management adjustments through its 3.5-inch color touch screen display, enabling users to monitor fuel delivery, ignition timing, and diagnostic data directly from the driver's seat or the shop bench. Built for gasoline-powered applications, the Sniper EFI controller puts advanced tuning capabilities into the hands of enthusiasts, hot rodders, and professional engine builders who demand responsive, precision fuel injection control.

The 3.5-inch color touch screen interface provides intuitive access to engine parameters, allowing operators to adjust fuel mapping, spark timing, cold-start enrichment, and idle characteristics without disconnecting the controller. The compact form factor—measuring 6.5 × 3.25 × 6.55 inches and weighing just 0.65 lbs—makes the controller portable enough for trackside diagnostics or installation into tight engine bay spaces. Real-time data streaming capability enables on-the-fly tuning adjustments, critical for carbureted-to-EFI conversion projects, performance tuning, and troubleshooting fuel system issues in vehicles where traditional carburetors have been replaced with Sniper EFI systems.

This controller is designed for owners and technicians working with Sniper EFI equipped vehicles who need direct access to engine tuning parameters. Whether performing initial system setup, fine-tuning air-fuel ratios for different fuel blends or atmospheric conditions, or diagnosing performance issues, the Sniper EFI programmer eliminates the need for laptop-based tuning software and complex cable connections. The touch screen interface has become the industry standard for modern EFI controller interaction, offering faster workflow and clearer visibility of engine data compared to older button-based programmers.

Sniper EFI systems have become the preferred solution for classic car restorations, street rod builds, and engine swaps where modern fuel injection reliability is required. The Holley brand maintains strong authority in the fuel injection and engine management space, and this controller represents a core component of the Sniper EFI ecosystem. Purchasing the correct programmer version ensures full compatibility with your Sniper EFI harness and engine configuration.