COBB Accessport V3 for Porsche GT3 & GT3 RS

Fits

• Porsche 991.1 GT3 (2013–2016)
• Porsche 991.1 GT3 RS (2015–2017)
• Porsche 991.2 GT3 (2017–2019)
• Porsche 991.2 GT3 RS (2018–2019)

The COBB Accessport V3 is the ultimate ECU tuning upgrade for the Porsche GT3 and GT3 RS. Featuring a large full-color, high-resolution screen, the Accessport allows you to monitor up to six live parameters while customizing gauge layouts for race, street, or dyno use. Multiple bezel options, extensive mounting solutions, and storage for up to 100 calibrations make this one of the most versatile tuning tools available for Porsche owners.

Warning: Installing the Accessport over any calibration other than OEM or COBB may result in ECU or TCU failure.

Key Benefits

• Unlocks improved throttle response and smoother power delivery
• Supports OTS maps for common bolt-on performance upgrades
• Monitors up to six engine parameters in real time
• Customizable gauge layouts for street, track, or dyno use
• Highly intuitive interface for fast ECU map switching
• Stores up to 100 custom or OTS calibrations
• 50-state legal performance backed by CARB certification
• User-customizable startup screen and interchangeable faceplates

Why Choose COBB?

The Accessport V3 is the best-selling ECU management solution for Porsche vehicles. By replacing conservative OEM mapping with optimized performance calibrations, COBB unlocks improved throttle response, smoother power delivery, and noticeable gains throughout the rev range. COBB also provides off-the-shelf (OTS) maps for most common bolt-on upgrades, making it easy to continue enhancing your GT3 as you modify it.

Features

• Large full-color, high-resolution screen
• Customizable multi-gauge display
• In-vehicle mount with on/off switch
• User-customizable startup screen
• Interchangeable faceplates

50-State Legal

This product is legal for sale and use in all 50 states when used according to the manufacturer’s application guide. CARB Executive Order EO Number: D-660-58.