Holley Introduces Sniper Stealth 4500 EFI Systems

New from Holley – the Sniper Stealth 4500 EFI Systems. These systems are specifically designed to upgrade drag race and high-performance street vehicles to EFI. See more details below.

Official Release:

Holley/MSD is pleased to 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.

Features:

  • Can support up to 1,500 horsepower on naturally aspirated engines and 1,250 horsepower on forced-induction engines
  • Developed specifically to upgrade drag race and high-performance street vehicles to EFI
  • Eight 100-pound-per-hour fuel injectors and multiple input and output options

Article Sources

About the author

Chris McWilliams

Chris McWilliams grew up watching his dad race go-karts around his Southern Indiana home and started racing junior dragsters when he was 10 years old. Chris drove a UMP Mini Stock for two seasons until he totaled his racecar in an accident at Western Kentucky Speedway. He is currently a college student at Oakland City University working on a degree to pay the bills for his dirt racing addiction.
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