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New Tuning File Available: Porsche 991 GT3 3.8 DFI Stage 2 ECU Tuning File – MED17.1.11 544999 (Track-Focused Remap) 99161860300 - Stage 2 ECU remap for Porsche 991 GT3 3.8 DFI – sharper throttle, max performance, all emissions intact
Welcome to the official discussion thread for the Porsche 3.8 DFI tuning package. This calibration is specifically developed for the MED17.1.11 ECU and optimized to work seamlessly with the automatic transmission.
Target Performance: 475.0PS / 349.4KW.
Share your experience!
Have you flashed this file? Drop your dyno graphs, 0-100 times, reviews, or ask any technical questions below!
➜ Download Tuning File / View Full Specs
Discussion & Reviews: Porsche 3.8 DFI
Welcome to the official discussion thread for the Porsche 3.8 DFI tuning package. This calibration is specifically developed for the MED17.1.11 ECU and optimized to work seamlessly with the automatic transmission.
Target Performance: 475.0PS / 349.4KW.
Share your experience!Have you flashed this file? Drop your dyno graphs, 0-100 times, reviews, or ask any technical questions below!
Extended Product Information
- Stage 2 remap for Porsche 991 GT3 3.8L DFI on Bosch MED17.1.11
- Throttle response sharpened across the RPM range for track-focused drivability
- VVT and torque structure re-optimized for faster rev rise and punchier midrange
- Fuel, ignition and lambda strategies adjusted for performance fuel types
- All stock emissions components (catalyst, O2 sensors) retained and monitored
- Dynamic rev limiter and gear-dependent torque limits reconfigured
- Flash-ready via CMD Flash — no patching needed
- Supplied as full binary for direct ECU writing
- Dyno-tested calibration under real load and temp conditions
- Recommended for off-road/motorsport use — ensure compliance with local laws
➜ Download Tuning File / View Full Specs