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TRIFECTA presents: Cadillac XTS MY2013--2019 Powertrain Calibration Reprogramming TRIFECTA presents a complete powertrain power delivery profile calibration for the MY2013--2019 Cadillac XTS 3.6L LFX engine and corresponding 6T70 automatic transmission reprogramming. The TRIFECTA Performance Cadillac XTS 3.6L (LFX) MY2013--2019 powertrain calibration is an easy to install software performance calibration with an EZ Flash cable device that will yield gains of up to +14 ft-lbs and +20 WHP und