Porsche 991.1, 991.2 GT3, GT3 RS Map Notes
Supported Vehicles:
Porsche 991.2 GT3, GT3 RS
2014-2016 991.1 Porsche GT3 WM
2016 991.1 Porsche GT3 RS WM
2018-2019 991.2 Porsche GT3 MT/PDK WM
2018-2019 991.2 Porsche GT3 RS MT/PDK WM
Quick Link
Map Revision:
| 991.1 GT3 | 991.2 GT3 RS | 991.2 GT3 | 991.2 GT3 RS |
|---|---|---|---|---|
Stage0 | v100 | v100 | v100 | v100 |
Stage1 | v100 | v100 | v100 | v100 |
Required Accessport Firmware:
AP3-POR-013: 1.7.4.2-19051 or greater
Map Availability:
Download from the COBB Tuning Porsche Map Database
Fuel Requirements:
Each map lists the minimum required octane. A higher octane fuel can be used safely on a map designed for lower octane. DO NOT use maps designed for higher octane with lower octane fuels. Top Tier gasoline should be used where available.
Maps designated with "93" are for use with 93 and 94 octane/98 RON fuel or better.
Maps designated with "91" are for use with 91 and 92 octane/95 RON fuel or better.
These maps are designed for E10 fuel (fuel with 10% ethanol content). For those who only have access to E0 fuel (fuel with 0% ethanol) it is recommended to use the "91" and "ACN91" octane versions of the maps and datalog the car to ensure your fuel is performing to the necessary level. This is especially important for those using Canadian 94 octane E0 fuel.
991.1 GT3
Stage1 91 Octane / 95 RON
Stage1 93 Octane / 98 RON
Stage1 100 Octane / 105 RON
991.1 GT3 | Peak Gains | Max Gains |
|---|---|---|
Stage 1 91 Octane / 95 RON | 2%hp, 4%tq | 7% hp, 7% tq |
Stage 1 93 Octane / 98 RON | 1%hp, 3%tq | 15% hp, 15% tq |
Stage 1 100 Octane / 105 RON | 7%hp, 4%tq | 17% hp, 17% tq |
Results may vary
Stage 1
Intake Requirements: Stock air box with stock air filter
Exhaust Requirements: Stock
Peak Gains are reported as the absolute maximum value (HP and TQ) between the highest points of two plots.
Max. Gains are reported as the maximum TQ or HP gain at any point across engine speed range.
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991.1 GT3 RS
Stage1 93
Stage1 100
991.1 GT3 RS | Peak Gains | Max Gains |
|---|---|---|
Stage1 91 Octane/ 95 RON | Not available when tested | Not available when tested |
Stage1 93 Octane / 98 RON | 5% hp, 3% tq | 17% hp, 17% tq |
Stage1 100 Octane / 105 RON | 6%hp, 3% tq | 18% hp, 18% tq |
Results may vary
Stage 1
Intake Requirements: Stock air box with stock air filter
Exhaust Requirements: Stock
Peak Gains are reported as the absolute maximum value (HP and TQ) between the highest points of two plots.
Max. Gains are reported as the maximum TQ or HP gain at any point across engine speed range.
991.2 GT3
Stage1 91
Stage1 93
Stage1 100
991.2 GT3 | Peak Gains | Max Gains |
|---|---|---|
Stage1 91 Octane/ 95 RON | 3% hp, 1% tq | 13% hp, 13% tq |
Stage1 93 Octane/ 98 RON | 8% hp, 10% tq | 23% hp, 23% tq |
Stage1 100 Octane/ 105 RON | 12% hp, 12% tq | 27% hp, 27% tq |
Results may vary
Stage 1
Intake Requirements: Stock air box with stock air filter
Exhaust Requirements: Stock
Peak Gains are reported as the absolute maximum value (HP and TQ) between the highest points of two plots.
Max. Gains are reported as the maximum TQ or HP gain at any point across engine speed range.
991.2 GT3 RS
Stage1 93
Stage1 100
GT3 RS | Peak Gains | Max Gains |
|---|---|---|
Stage1 91 Octane/ 95 RON | Not available when tested | Not available when tested |
Stage1 93 Octane/ 98 RON | 6% hp, 3% tq | 13% hp, 13% tq |
Stage1 100 Octane/ 105 RON | 7% hp, 11% tq | 22% hp, 22% tq |
Results may vary
Stage 1
Intake Requirements: Stock air box with stock air filter
Exhaust Requirements: Stock
Peak Gains are reported as the absolute maximum value (HP and TQ) between the highest points of two plots.
Max. Gains are reported as the maximum TQ or HP gain at any point across engine speed range.
Non-Performance Maps
Stage 0
Stock calibration. Factory map. Does Not Uninstall Accessport.
Closing Warnings and Precautions:
Use of inappropriate calibration/modification combinations will promote engine damage.
Seek the help of a professional COBB Protuner should your Porsche fall outside of OTS map requirements.
Top Tier gasoline should be used where available. Use of lower quality fuels can result in catastrophic engine damage.
For track events, we recommend adding at least 2 gallons of 100 octane fuel to battle high track temperatures.
Revision Notes:
Map Version | Note: |
|---|---|
v100 | Initial Release Calibration. Adjusted ignition timing, airflow limits, throttle limits, and fuel as well as other tables that help maintain drivability and increase performance all while maintaining reliability. |