Performance ECU remap for the 3.0L S55 twin-turbocharged BMW M3 F80 Competition (450hp) with MEVD17.2.G control unit. This Stage 2 file eliminates the factory top-speed limiter (Vmax), disables catalyst efficiency diagnostics (CAT OFF), and activates full Sport Display. Designed for bench read/write via FEMTO tool — original included.