Holley Sniper Stealth 4500 EFI Systems - Engine Builder Magazine

Holley Sniper Stealth 4500 EFI Systems

Holley/MSD has announce the release of Sniper Stealth 4500 EFI Systems, which are capable of supporting up to 1,500 horsepower for naturally aspirated engines and 1,250 horsepower for forced-induction applications.

Holley/MSD has announce the release of Sniper Stealth 4500 EFI Systems, which are capable of supporting up to 1,500 horsepower for naturally aspirated engines and 1,250 horsepower for forced-induction applications (comes with a 2.5 bar MAP sensor). Developed specifically to upgrade drag race and high-performance street vehicles to EFI, they feature eight 100-pound-per-hour fuel injectors and multiple input and output options to give you unlimited control of your engine.

You don’t have to be a computer genius to use the Sniper Stealth 4500 EFI System, and you don’t even need a laptop. A simple calibration wizard handles the initial setup – just answer a few basic questions about your engine, and the high-resolution full-color touchscreen wizard creates a base map and starts tuning completely on its own. The system even comes with a USB/CAN tuning cable for laptop tuning and free downloadable Sniper EFI software.

Fully compatible with both draw-through and blow-through forced-induction applications, Sniper Stealth 4500 EFI Systems are available in three different finishes – shiny, black, and gold. They feature integrated ignition timing control and a programmable launch control via a two-step and timing retard, either of which can be triggered by a trans-brake. It features -8AN fuel inlets, a Gen 3 Ultra Dominator-style four-bolt air cleaner flange, and 2.125-inch throttle plates that flow 1440 CFM for larger cubic-inch engines. There’s a built-in single-stage wet or dry progressive nitrous control and three programmable 0-5v sensor inputs for oil/fuel/dome, nitrous pressure, or any other critical information you select, and the included genuine Bosch LSU 4.9 wideband oxygen sensor provides real-time fuel-map learning.

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