FAST Qwik Tune calibration selector switch kits feature the XFI ECU and the ability to store up to 4 calibration files that you can select from on the fly by simply pressing a button. Multiple calibrations can be used for different fuels, nitrous oxide systems, and driving conditions. Wiring in the "flash enable" input will allow them to double as flash-mode switches. Get the performance setup you want, when you want it with an assist from FAST Qwik Tune calibration selector switch kits.

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