APR ECU Upgrade - 4.0L GT3 RS (991.2) — Porsche 911 GT3 RS (2019)
Vendor:
APR
SKU:
ECU-40L-9912-GT3RS
Availability:
In-store installation only
Product type:
Engine Tuning
$2,718.95
APR Stage 1 horsepower gains
APR’s Stage 1 pump-gas figures are shown below. Choose the row for your fuel grade and exact engine version.
| Calibration / version | Required fuel (U.S. octane) | APR total output | APR maximum horsepower gain |
|---|---|---|---|
| Stage 1 | 91 AKI | 539 HP | +33 HP |
| Stage 1 | 93 AKI | 547 HP | +44 HP |
APR describes the gains for this tune as wheel-horsepower gains. Total output and maximum gain are separate figures; maximum gain is not the difference between the two peak horsepower ratings.
Results vary with fuel quality, vehicle condition, hardware and test conditions. Use the fuel required by the installed APR calibration; verify the exact ECU application before installation.
Vehicle fitment
Find your vehicle below, then match the engine, chassis, trim and controller requirements for this specific APR tune. Vehicle names in the title are a summary; compatibility is limited to the applications and conditions shown here.
| Vehicle | Years | Chassis | Engine | Configuration / market | Requirements |
|---|---|---|---|---|---|
| Porsche 911 | 2019 | 991.2 | 4.0L | GT3 RS; Coupe · Confirm original market | See fitment requirements below. |
Fitment requirements
- Confirm exact ECU/TCU box code, software revision, fuel grade and required hardware with APR before installation. A vehicle/engine match alone does not confirm software availability.
Install Methods
Note: You'll purchase the tune during the install.
We're excited to announce our Engine Control Unit (ECU) Upgrades are now available for the Porsche 911 GT3 RS (991.2) 4.0L engine with the Bosch MED17.x ECU! Expect excellent gains with up to 539-577 HP with 362-380 FT-LBS of torque on tap, depending on octane, from this simple software upgrade. Our new suite of 4.0L ECU software comes after months of extensive research and development that is typically absent from the aftermarket. Our upgrade makes the engine more powerful and more exciting with added features. We've extensively calibrated the system to work flawlessly on the track, while retaining safety routines to protect your engine in the most demanding scenarios.
Features:
- Delivers up to 539-577 HP with 362-380 FT-LBS depending on octane
- Max gains of +33-77 WHP and +39-58 WFT-LBS depending on octane
- Supports 91 AKI, 93 AKI, 100 AKI, 104 AKI, and E60-E85 fuel grades
- Ethanol support from E60-E85 for maximum performance
- Standing RPM limiter set to 7,000 RPM
- Engine RPM limiter set to 9,000 RPM
- Speed limiter matches max gearing
- Exhaust flaps recalibrated to provide better low-end performance
- No hardware required (Software only)
- Supports standard bolt on modifications
- Free lifetime updates
- Direct OBDII port flash (No ECU removal)
- 30 day money back guarantee