The RC F engineering document describes purpose-built VF Tuner control strategies around the 2UR-GSE and ECU calibration 89663-24284. The useful distinction is where each feature acts in the engine-control sequence.
Direct AFR
A load-by-RPM surface expresses the requested mixture directly. The documented merge policy retains a richer OEM protection request, with bank handling, feedback and injector scheduling continuing through the established control path.
Torque MAX
Torque MAX adjusts the permitted component-torque ceiling in the specified high-demand and shift states. Actual driver or shift demand still has to exist, and the final arbiter determines the delivered request.
Downshift response and Simu-DCT
The downshift strategy shapes the transient engine-demand request used for rev matching. Enhanced Simu-DCT coordinates engine torque unload, speed synchronization and handback through the shift.
Simu-DCT is an engine-side strategy. Clutch pressure, clutch filling and solenoid execution remain functions of the transmission controller; this feature does not convert the transmission into a dual-clutch unit.
Match the release to the vehicle
The linked PDF is an engineering reference for the stated ECU architecture. Confirm the current file, enabled feature set and validation status with VF Tuner support before selecting a calibration. No measured shift-time improvement or horsepower gain is specified in this overview.