Thumbnail for COBB Accessport V3 tuner for Porsche 718 Cayman

Thumbnail for COBB Accessport mounted inside Porsche 718 cockpit

Thumbnail for ECU tuning upgrade for Porsche 718 Boxster with COBB Accessport

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Thumbnail for COBB multi-gauge monitoring setup for Porsche 718

COBB Accessport V3 tuner for Porsche 718 Cayman

COBB Accessport mounted inside Porsche 718 cockpit

ECU tuning upgrade for Porsche 718 Boxster with COBB Accessport

COBB Accessport V3 for Porsche 718 Cayman-Boxster (All) - Competition Motorsport

COBB multi-gauge monitoring setup for Porsche 718

COBB Tuning Accessport V3 for Porsche 718 (All Models)

Porsche 718 Cayman and Boxster

The COBB Accessport V3 is the most advanced and best-selling ECU tuning upgrade for the Porsche 718 Boxster and Cayman. Porsche’s factory ECU mapping is conservative by design, leaving untapped power and torque on the table. COBB’s OTS (off-the-shelf) performance maps unlock sharper throttle response, increased midrange torque, and greater top-end power across the full rev range.

As you add bolt-on performance upgrades, the Accessport grows with your build—providing map support for most intakes, exhausts, intercoolers, and more. It’s the last tuning device your 718 will ever need.

Installation takes about 20 minutes: download your preferred maps from COBB, connect the Accessport to your OBD2 port, flash the ECU, and you're ready to drive. Your factory tune is safely backed up so you can revert to stock anytime.

The Accessport V3 features a large full-color high-resolution display, customizable multi-gauge layouts, and support for 100 calibrations. Choose from a wide range of mounts and bezel options to create your ideal cockpit setup.

Warning: Installing an Accessport over non-OEM or non-COBB software may result in ECU/TCU failure.

Confirmed Applications

Boxster

2017–2021 Porsche 718 Boxster MT / PDK
2017–2021 Porsche 718 Boxster S MT / PDK
2018–2019 Porsche 718 Boxster GTS MT / PDK

Cayman

2017–2021 Porsche 718 Cayman MT / PDK
2017–2021 Porsche 718 Cayman S MT / PDK
2018–2019 Porsche 718 Cayman GTS MT / PDK

Features

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

COBB Accessport V3 Dyno Graphs

COBB Porsche 718 Base dyno chart - 93 octane

COBB Porsche 718 S dyno chart - 93 octane

COBB Porsche 718 GTS dyno chart - 93 octane

Key Benefits

Unlocks significant horsepower and torque across the powerband
Improves throttle response and drivability
Supports OTS maps for popular bolt-on upgrades
Customizable multi-gauge layouts for street, track, or dyno use
Quick installation and easy map switching
Stores up to 100 maps for flexible tuning
High-resolution display with interchangeable faceplates
Can revert to stock mapping anytime

Competition Motorsport | sales@competitionmotorsport.com | (844) 438-7244

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