Get the Most Out of Your Porsche 718
The COBB Accessport V3 is the industry-leading tuning solution for 2017–2024 Porsche 718 Cayman and Boxster 2.0T and 2.5T models, including Base, S, and GTS variants. Designed specifically for vehicles equipped with the PDK transmission, the Accessport allows you to flash both the engine ECU and transmission (TCU) directly through the OBD-II port—with no bench flashing, ECU removal, or invasive hardware modifications required.
If you’re searching for Porsche 718 tuning, Cayman Boxster ECU tuning, or PDK tuning with a COBB Accessport, this is the proven foundation used by enthusiasts, shops, and professional calibrators worldwide.
The factory Porsche ECU and PDK calibration are designed around emissions compliance, noise regulations, and conservative power targets. Once airflow, fueling, or turbo components are upgraded, the stock calibration becomes the primary limiter—restricting boost, pulling timing, and reducing consistency under load.
The COBB Accessport V3 allows precise recalibration of both the engine ECU and PDK transmission, unlocking the full potential of hardware upgrades while maintaining factory safety systems and drivability.
Ideal for tuned 718s, upgraded turbo builds, ethanol blends, and track-focused cars looking for safe power gains, refined PDK behavior, and full tuning control.
Simple plug-and-play installation via the OBD-II port. Custom tuning is strongly recommended to match your specific hardware, fuel type, and performance goals. Always consult your tuner before flashing to ensure proper calibration and setup.
Optional/required extras: custom ECU calibration, custom PDK tune, supporting airflow and fueling upgrades
Compatible with the following Porsche 718 models (2017–2024):
PDK transmission required for PDK flashing functionality.
RaggDoll Motorsports doesn’t just sell tuning devices—we support complete, properly engineered Porsche 718 builds.
Proven platforms.
Responsible tuning philosophy.
Track-tested, street-proven results.
Built differently—because control and calibration matter as much as hardware.
Liza & most of the time Vince is amazing...lol. Nah, kidding, these guys are awesome folks to deal with. I purchased their Stage 2 turbo, turbo inlet, intercooler, engine tune, and high pressure fuel pump for my 2018 2.5L Boxster GTS and they're products and service have been top notch throughout the entire process.
Raggdoll Motorsports set up two dyno sessions for my Porsche Turbo S. The Porsche touts a 4.0-liter built engine and head work facilitated by Sam at ByDesign. Also has the XR ByDesign turbo kit with all the supporting mods. The first session the PDK kept transitioning out of manual mode. During the second session a boost leak at the throttle body boot ended the session early. We managed 812 hp on a Mustang dyno at only 20 psi of boost.
The people behind RaggDoll Motorsports have been in the game for a very long time and really know their stuff. They have a passion for modifying cars and are enthusiasts before anything else.
I purchased a RENNEN turbocharger for my 718 T. I had a special request, which was to get the turbine housing coated with Swain Tech white lightning thermal barrier coating and RaggDoll accommodated without hesitation even though it was something new for their team.
Hey All! Shout out to Liza and @Raggdolls718. Amazing customer service, product knowledge and a top quality product. Liza went out her way to accommodate my tight timeframe and the level communication and level of detail shared was amazing.
I purchased the Raggdoll Series One turbocharger upgrade and the turbo inlet upgrade from RMS for my Porsche 718 Cayman GTS and was very pleased with both the products and the customer service from RMS!
Engineered for the 718 platform, trusted worldwide. RaggDoll delivers high-performance parts, custom turbo innovations, and expert-level support for Porsche 718 drivers and tuners—from Las Vegas to Germany, Hong Kong, and beyond.
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