Holley 558-407 ECM Calibration Select Switch Multi Map Selector

The Holley 558-407 ECM Calibration Select Switch is a key selector designed for Holley Dominator EFI systems. It provides access to four separate maps, allowing the selected ECM calibration to be changed through the switch.

Designed as a multi-map selector, this component supports applications that require multiple ECM calibrations within a Holley Dominator EFI setup. Its key-selector design provides a direct way to select among the available maps.

The Holley 558-407 is supplied as a kit and is identified as an ECM Calibration Select Switch. Refer to the applicable Holley Dominator EFI documentation for installation and operating information specific to your system.

Features:

• ECM Calibration Select Switch: Provides a selector for changing ECM calibrations.
• Four Separate Maps: Offers selection among four separate maps.
• Key Selector: Uses a key-selector design for map selection.
• Holley Dominator EFI: Designed for use with Holley Dominator EFI systems.
• Kit: Supplied as a kit.