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The FAST vehicle speed sensor and auxiliary shaft wiring harness lets you add speed sensing capability to an XFI ECU. This adapter cable connects either a vehicle speed sensor or a driveshaft speed sensor to the XFI computer, enabling the XFI system to use speed inputs for timing, fuel or data-logging functions. It’s a straightforward plug-in solution intended to expand XFI functionality where a dedicated speed feed is needed.
FAST Harness FAST VSS and Auxiliary Shaft Wiring Harness
