The FAST XFI ECU has the ability to store up to four calibration files. Qwik Tune Calibration Selector Switch by FAST allows you to select from up to 4 tunes on the fly by simply pressing a button If the Flash Enable Input is wired to the switch this will allow the Calibration Select Switch to double as Flash Mode Switch.
WARNING: This product contains chemicals known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.