Jul 8, 2010 · The Sniper EFI system looks at the closed-loop fuel compensation required to reach your target AFR. It is reliant on the data acquired by the included wideband oxygen sensor.

Apr 24, 2018 · With the release of the Sniper 2 4150, Holley brings all of the Sniper family into V2 firmware and Software. The firmware for the handheld and the laptop software are the same …

Mar 3, 2025 · SNIPER EFI PC SOFTWARE: VERISON 1.0 BUILD: 4 – Initial Sniper EFI PC Software Release

Downloading and installing the free Holley sniper efi tuning software is extremely easy to do and will run on nearly any computer. I use this software to tune my 1990 Chevy Camaro that...

Nov 12, 2025 · Take control of your Sniper EFI system with the Sniper Bluetooth module (PN 558-498) and app! Utilizing your iOS device, wirelessly connect, tune, datalog, and monitor your …

SNIPER EFI FIRMWARE & SOFTWARE REVISION LOG available for download at www.Holley.com. The ECU and Handheld firmware are the ECU and the Handheld at the …

Click on Each Item and it will begin to download or open for you. If you don't see what you need or need further assistance, don't hesitate to call (309) 863-5929 or email …

In this video, we'll walk you through a step-by-step guide on how to update your firmware using either a laptop with an internet connection or our convenient Bluetooth module. Plus, our …

SNIPER EFI PC SOFTWARE: VERISON 1.3 BUILD:99981231160000-0800 50 – Initial Software for Build Version 3, support for HyperSpark Ready to Run distributors, Datalogging bug fixes.

Holley Sniper EFI Training Part 1: Laptop Software Installation walks you through downloading and installing the Sniper EFI software to begin our training course.