Since their release, 2019–2022 GM gas trucks (2022.5+ Refresh not yet supported) have been locked down—leaving owners waiting for a tuning solution. The wait is over. The DiabloSport inTune i3 8225-R Kit provides everything you need to finally unlock performance in your late-model GM truck. This complete package includes the industry-leading inTune i3 handheld tuner along with the specialized locksmith device and harnesses required to unlock both the ECM and TCM, giving you full access to tuning capability.