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Holley Multi-Map Selectors
Holley multi-map selectors are specifically designed for use with Holley Dominator EFI systems. They allow up to four different calibrations to be selected at vehicle key-on. The included switch is connected into the J3 ECU connector. Multiple maps can be used for many different purposes, such as various fuel types or octanes; charting track conditions, nitrous setups, and more.
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$176.95
$159.25
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