When you bring your vehicle to WestTuned Car Mechanic Center, you can rest easy knowing that your vehicle is in professional hands.
2014-2018 | 577 HP -> 680 HP
Westtuned develops precision ECU tuning software for the Mercedes CLS63S 2014-2018, crafted to push your engine beyond factory restrictions. Our calibrations are built around real-world dyno data, delivering a smoother, stronger power curve without compromising engine reliability or daily drivability.
Our engineers develop every file using real-world data logging and dyno sessions, ensuring each Stage 1 calibration delivers consistent, repeatable power gains across a wide range of conditions and temperatures.
Stage 1 software pushes your Mercedes CLS63S 2014-2018 from the stock 577HP / 590Nm to 680HP / 770Nm — a gain of +103HP, achieved with no hardware modifications required.
From a completely stock Mercedes CLS63S 2014-2018 to a fully modified build, Westtuned has the right calibration to match your hardware and unlock the performance you're after.
Choose Westtuned for:
Transform your Mercedes CLS63S 2014-2018 with professional tuning software from Westtuned and experience the power and responsiveness your engine was truly built for.
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