Description

Overview

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.

Fits 2019-2019 Porsche 911

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)

Important fuel quality information
Important fuel quality information

Find your boxcode and revision
Find your boxcode and revision

Only use fuel equal to or higher than specified. Never use a lower octane fuel. Always follow our fuel guide, especially with race fuel and Ethanol, where available. Dynos are for reference only. Results will vary. Contributing factors include the vehicle condition, vehicle setup, dyno type, dyno setup, environmental factors, fuel quality, and more. When describing fuels, the North American Region (NAR) uses the Anti-Knock Index (AKI), (RON+MON)/2, or (R+M)/2. The Rest of the World (ROW) uses RON. RON is Research Octane Number and MON is Motor Octane Number.

APR ECU Upgrade Stages

Our ECU Upgrades are available in multiple configurations. Installation of additional performance hardware, such as an intake system, may provide further performance improvements.

APR Stage 1

The APR Stage 1 ECU Upgrade is the first step towards tuning your engine. It produces up to 539-577 HP and 362-380 FT-LBS of torque with gains as high as +33-77 HP and +39-58 FT-LBS of torque at the wheels.

APR Stage 1 is available for 91 AKI, 93 AKI, 100 AKI, 104 AKI, and E60-E85 fuel grades in North America, and 95 RON, 98 RON, 104 RON, 108 RON, and E60-E85 in the Rest of the World.

Horsepower and Torque Dyno Charts

The APR Difference

Who we are - We’re a global automotive engineering firm nestled in Opelika, Alabama. Our 80,000ft² state-of-the-art facility is home to some of the best engineers in the industry, who have mastered hundreds of engine management systems. We have multiple engine and chassis dynos, and the resources necessary to create our ECU Upgrades in-house, from the ground up! We're not a new company either. We've been around since the 90's and we have a strong financial backing to ensure we'll be here to support you for decades to come!

What we do - We optimize everything to make your engine more powerful. We adjust air-fuel ratios, advance ignition, increase boost pressure, alter cam positions and lift profiles, and more, all depending on the type of engine and management system, of course! We don’t take shortcuts, and we don’t take risks. We do it the right way.

How we differ - With our proprietary calibration and direct ram access data logging tools and operating system code changes, we’re able to make some of the strongest and fastest ECU upgrades, without needing costly end user adjustments. We work with the ECUs intelligent modeling and closed-loop systems, and beta test in multiple environments to create upgrades that work no matter where you drive!