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EQT ECU Staged Tune (Porsche 718 Cayman/Boxster GTS Only)


  • $ 300.00

The Porsche 718 Cayman / Boxster come with an incredibly sophisticated ECU from the factory, working with these Siemens SDI21 units requires an intimate knowledge of engine dynamics and software engineering to be able to properly understand and modify the functionality.

EQT has decades of experience in both fields and our shop 718 Cayman GTS has allowed us to perform R&D to deliver the best results possible. 

Using Cobb's ProTuner software, we have been developing and refining our own set of staged tunes or "OTS tunes" for your Porsche to be used with the Cobb AccessPort.

Hours of in house dyno testing, drivability road testing, and track torture testing went into the development of our calibrations. So you can be sure your car will perform optimally while retaining excellent drivability characteristics and a healthy margin of safety built into every tune.

EQT 718 Thunder HIll

When ordering, please select from the options listed for fuel quality, modifications, and special features you would like to be included in your tune. Please note that these maps are meant for the more basic Stage 1 and Stage 2 cars. If your car is more heavily modified and does not fall into the options available, we also offer custom e-tuning for just about any modification and fuel type available. 

For more information on E30 and Ethanol Blends. See our Article by Clicking Here 

Power Estimates:

This is a question asked all too frequently, and while we’d love to give you a specific number, there are many variables involved that can affect dyno results. Even taking the car’s modifications out of the equation, there are other variables such as weather, elevation, fuel quality, dyno type, dyno fan setup, etc. that come into play. With that being said, these are ranges that most vehicles will see, given standard modifications and reasonable conditions:

  •  Stage 1:  410-460whp
  • Stage 2: Currently In Development.
    *Stage 2 is still available however as a Custom Tune Only

Below is an example of our Stage 1 tune utilizing 91 Octane and E30. Please note that these results were acquired on our Dynocom chassis dyno in 2WD mode and close to optimal conditions. Dyno numbers can vary greatly depending on dyno type and conditions. 

EQT 718 Dyno Results


  • 2018-2019 Porsche Cayman (982) GTS MT/PDK WM
  • 2018-2019 Porsche Boxster (982) GTS MT/PDK WM
    *Base, and S Trim's are currently only supported for Custom Tuning.

Ethanol Blended Fuels
When selecting Ethanol Blended Fuels, an Ethanol Content Analyzer is required. For more information, see our FAQ by clicking the icon below


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