2015–2016 Porsche 911 GT3 RS (991 Gen) Custom HP Tuners Tuning (4.0L Flat-Six)

Our HP Tuners custom calibrations for the 2015–2016 Porsche 911 GT3 RS (991.1) are designed to maximize the performance of the legendary 4.0L naturally aspirated flat-six. Precision-built for track dominance and spirited street driving, our in-house tuning sharpens throttle response, optimizes fueling and ignition strategies, and enhances PDK transmission performance while preserving Porsche’s renowned reliability.

Key Features

• Engine Coverage – 2015–2016 Porsche 911 GT3 RS (991.1, 4.0L Flat-Six DFI engine)

• Transmission Support – Full calibration support for the 7-speed PDK dual-clutch transmission, improving shift speed, launch control, and torque management

• Custom Calibration – Tailored adjustments for intake systems, exhaust upgrades, headers, and race fuel/E85 conversions

• Safe Performance – Built with knock-safe ignition, optimized fueling, and Porsche-safe rev strategies for consistent reliability

• Remote Tuning – Supported via HP Tuners MPVI2 and MPVI3 (ECU/TCU unlock required)

Benefits

• Instant throttle response and improved linearity

• More usable power across the entire rev range

• Faster, smoother gear changes with refined PDK calibration

• Stronger mid-range pull and optimized high-RPM performance

• Reliable calibration for both stock and track-prepped RS builds

Compatibility

Custom tuning is available for:

• 2015–2016 Porsche 911 GT3 RS (991.1, 4.0L Flat-Six, PDK only)

Process

1. Purchase your GT3 RS tuning package.

2. Unlock ECU/TCU if required.

3. Use HP Tuners to read your factory calibration.

4. Provide your stock file and modification list.

5. Receive a calibration tailored for your build.

6. Flash your tune and experience optimized performance.

Professional Assurance

All Porsche GT3 RS calibrations are written in-house with precision to ensure maximum performance, smooth drivability, and long-term reliability. From stock 991.1 RS models to fully upgraded track builds with intake, header, and fueling enhancements, our HP Tuners custom tuning delivers results trusted by Porsche enthusiasts worldwide.

Meta Description (SEO)

Custom HP Tuners tuning for 2015–2016 Porsche 911 GT3 RS (991 Gen, 4.0L Flat-Six). Improve throttle response, horsepower, torque, and drivability with safe, reliable calibrations.