COBB Tuning V3 Accessport for Porsche 911 GT3 / GT3 RS



COBB Tuning V3 Accessport

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SKU: AP3-POR-013 Category: Vehicle: Brand:
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COBB Tuning V3 Accessport for Porsche 911 GT3 / GT3 RS

The in-cabin mountable Accessport V3 features a spacious, high-resolution, full-color screen that allows users to monitor up to six parameters in real time. It offers complete customization options, from choosing different bezel colors to configuring layouts for various preferences such as race, street, or dyno gauge clusters. Users can also select from a wide range of standard vehicle mounts for mounting convenience. The Accessport V3 includes all the exceptional COBB tuning features and provides ample space for storing up to 100 calibrations. This Accessport is a state-of-the-art addition to the vehicle and maybe the last one ever needed.

Accessport V3 Features

  • Simple Installation: All components needed for a straightforward installation are provided. Clear on-screen instructions intuitively recognize the user’s specific vehicle and available maps.
  • Simple Uninstall: Eliminate Accessport programming effortlessly using the user-friendly uninstall option accessible from the main menu.
  • Trouble Codes: Diagnose issues by reading engine trouble codes, clear them upon resolution, and avoid costly visits to the dealership.
  • Change Maps: Users can store up to 100 maps from the OTS map database or their favorite COBB tuner, facilitating rapid switching between them to meet any need.
  • Gauges: Utilize the Accessport as a gauge for monitoring boost or any other real-time information, directly sourced from the ECU.
  • Data Logging: Multiple data channels can be recorded simultaneously for thorough evaluation of engine performance, with a storage capacity of up to 10 hours.
  • Performance Measuring: Welcome to their personalized performance evaluation suite. Users can measure their 0-60mph time, 60-foot time, quarter-mile ETs, and trap speed.
  • Shift Light: Users can configure personalized RPM warning lights to ensure precise shifts every time.
  • AP Manager: Users can utilize their PC or Mac to manage maps, download recorded datalogs, or promptly update their Accessport.

Why COBB Tuning?

  • The Accessport V3 is the world’s best-selling and most versatile ECU upgrade solution for GT3 and GT3 RS models. It unleashes latent power within the vehicle by substituting conservative factory settings with more assertive calibrations. With readily available off-the-shelf (OTS) calibrations for a wide range of bolt-on modifications, this solution offers a pathway to continuous upgrades. It represents the ultimate engine management solution, ensuring enduring performance enhancements.


  • Large, full color, higher resolution screen
  • Customizable multi-gauge display
  • In vehicle mount, w/ on and off switch
  • Faster and easier to use with a familiar face
  • Interchangeable faceplates


  • 2014-2016 Porsche 911 GT3: 991.1
  • 2018-2019 Porsche 911 GT3: 991.2
  • 2016-2018 Porsche 911 GT3 RS: 991.1
  • 2018-2019 Porsche 911 GT3 RS: 991.2


  • Installation of this Accessport over anything other than OEM or COBB software may result in ECU / TCU failure


  • 50 State Legal
  • This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer’s application guide because it has a California Air Resources Board (CARB) Executive Order (EO) number: D-660-58 / D-660-92

About COBB Tuning

With over two decades of Research and Development, COBB Tuning has developed upgrade paths that equip vehicles to transform from standard factory models into powerful, drivable machines that enhance daily driving experiences. Each upgrade path is tailored to optimize the power of the Accessport, hard parts, and their off-the-shelf maps. Originating with a focus on Subaru, COBB Tuning has expanded its range to include products for BMW, Ford, Mazda, Porsche, Mitsubishi, Nissan, Audi, Volkswagen, and Honda. Their area of expertise covers engine management electronics, intake tract components, exhaust systems for turbocharged engines, turbo kits, drivetrain components, and suspension parts.

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