Description
Unlock the performance potential of your Porsche 981 Cayman GT4.
Softronic Performance Software is engineered specifically for the 2016 Porsche Cayman GT4, optimizing the naturally aspirated 3.8L DFI flat-six with increased horsepower, stronger torque, improved throttle response, and enhanced drivability while maintaining factory refinement and reliability.
Compatible with:
- 2016 Porsche Cayman GT4 3.8L DFI
Performance Gains
| Engine | Factory Power | Tuned Power | Factory Torque | Tuned Torque |
|---|---|---|---|---|
| 3.8L DFI Cayman GT4 | 385 HP | 415 HP | 310 lb-ft | 337 lb-ft |
Performance figures represent typical gains on premium 93-octane fuel.
Available Software Options
Depending on your vehicle and intended use, Softronic offers several optional programming features:
- Free-revving in Neutral
- Increased RPM limit for manual transmission vehicles
- Race-use diagnostic code elimination
- Top speed limiter removal
- Permanent Sport mode activation where applicable
- Factory exhaust burble (“gurgle”) removal
- Cold Start High Idle Delete (not recommended)
- Engine conversion files
- Custom tuning through datalog review when required
Note: Softronic does not recommend Cold Start High Idle Delete or the use of E85 fuel on any 981 GT4 engine.
What’s Included
Every Softronic Performance Software package includes:
- Vehicle-specific ECU calibration
- OBD-II programming cable
- Flashing software
- One VIN license for your Porsche
Each software license is permanently assigned to a single vehicle VIN.
Why GTCO Chooses Softronic
At GTCO, we choose products that combine proven engineering with real-world performance. Softronic has spent decades developing Porsche-specific ECU calibrations and pioneered consumer OBD-II ECU flashing for Porsche owners.
For the 981 Cayman GT4, Softronic enhances the 3.8L naturally aspirated flat-six with stronger power delivery, sharper throttle response, and improved drivability while preserving the precision and character that make the GT4 one of Porsche’s most celebrated driver’s cars.






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