How much HP can I gain with a Mercedes S63 Cabrio Stage 1 tune?

With a Stage 1 ECU tune, your Mercedes S63 Cabrio 2015-2021 can go from 577 HP to 685 HP, a gain of +108 HP.

Is ECU tuning safe for my Mercedes?

Yes. Westtuned uses manufacturer-calibrated ECU remapping with safe parameters. Stage 1 tunes require no hardware modifications and are fully reversible.

What is the difference between Stage 1 and Stage 2 for the S63 Cabrio?

Stage 1 delivers 685 HP with no hardware changes. Stage 2 pushes to 740 HP but may require supporting hardware modifications like downpipes or intercooler upgrades.

Mercedes S63 Cabrio

Name: Mercedes S63 Cabrio 2015-2021 ECU Tuning +108HP | Westtuned
Brand: Westtuned
SKU: WT-370
Availability: InStock

2015-2021 | 577 HP -> 685 HP

POWER

577 HP

685 HP

+108 HP

TORQUE

664 Nm

785 Nm

+121 Nm

ORDER FOR STAGE 1

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What Will Your Car Feel Like?

Estimated performance improvements

— sec

0-60 MPH

Stock: —s → Tuned: —s

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— sec

¼ Mile

Stock: —s → Tuned: —s

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— HP/ton

Power-to-Weight

Stock: — → Tuned: —

—

Estimates based on performance data. Actual results may vary depending on conditions, fuel quality, and vehicle specifics.

Performance Curve

Stock Stage 1

Detailed Description

Mercedes S63 Cabrio 2015-2021 Tuning Software by Westtuned

The Mercedes S63 Cabrio 2015-2021 is an exceptional platform — and with Westtuned custom ECU software, you can unlock performance that the factory left on the table. Our team of experienced calibrators fine-tune every parameter to maximize power output, throttle response and torque delivery.

Built on thousands of hours of dyno time and real-world testing, our Stage 1 software for the Mercedes S63 Cabrio 2015-2021 targets safe boost levels, optimised ignition timing and refined fuel maps for a power delivery that inspires confidence.

Stage 1 software pushes your Mercedes S63 Cabrio 2015-2021 from the stock 577HP / 664Nm to 685HP / 785Nm — a gain of +108HP, achieved with no hardware modifications required.

Whether your Mercedes S63 Cabrio 2015-2021 is running stock hardware or upgraded with intakes, downpipes or a performance exhaust, our software is optimised to suit your exact build.

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