BMW X5 | ECU Tunes

BMW X5 ECU tunes for the N55 (F15 35i), N63 (F15 50i) and S63TU (G05 X5M) — Stage 1 through Stage 2+ calibrations via remote OBD flash and bench tuning. The X5M Competition’s S63TU gains 80–120 WHP from a Stage 1 flash; the N55 X5 35i picks up 40–60 WHP. Both platforms support upgraded turbo builds.