APR ECU Upgrade - 4.0L GT3 (991.2)

Overview

We're excited to announce our Engine Control Unit (ECU) Upgrades are now available for the Porsche 911 GT3 (991.2) 4.0L engine with the Bosch MED17.x ECU! Expect excellent gains with up to 519-551 HP with 360-377 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 519-551 HP with 360-377 FT-LBS depending on octane
• Max gains of +33-69 WHP and +37-52 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
• Flash counter does not increase with each flash
• Free lifetime updates
• Direct OBDII port flash (No ECU removal)
• 30 day money back guarantee

Available Stages

APR Stage 1

The APR Stage 1 ECU Upgrade is the first step towards tuning your engine. It produces up to 519-55 HP and 360-377 FT-LBS of torque with gains as high as +33-69 HP and +37-52 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.