The 3.5 in. LCD touchscreen handheld controller lets you set up and tune a Holley Sniper EFI system without a laptop, and doubles as a customizable data monitor for your engine.

Holley 553-115 Features:

• Direct replacement handheld for Sniper 1 EFI kits.
• Basic, system, and advanced tuning of fuel, idle, spark, drive-by-wire, and transmission.
• Monitors parameters in pre-configured and custom multi-gauge screens.
• ECU data-logging with download to SD card and firmware updates.
• Full-color backlit 3.5 in. touch screen.
• Includes mounting sleeve, power and extension harness, SD card, and manual.