4.4i 320hp Stage 1 tuning

The BMW X5 4.4i 320hp produces 320 hp and 440 Nm as standard. The YASTUNING Stage 1 remap file takes it to 335 hp and 460 Nm, a gain of +15 hp and +20 Nm. Engine code 448S2. ECU: Bosch ME9.2. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.