Porsche 991 GT3 3.8 DFI ECU Tuning File – MED17.1.11 544999 (Track-Focused Remap) 99161860300 Stage 2 

• Initial Stage 2 tuning for Porsche 991 GT3 3.8L DFI
• Enhanced VVT, ignition and throttle parameters
• Dynamic limiter logic modified
• Read via CMD Flash interface
• Delivered as full binary​

• Track-tuned Stage 2 file for Porsche 991 GT3
• Revised throttle sensitivity and torque map
• Fully emissions-safe calibration
• CMD Flash-compatible — no checksum patching required​