Description
Disclaimer : Cancellations within 24 hours are subject to a cancellation fee. After 24 hours, a higher fee will apply.
Unleash the full performance potential of your 2012-2018 Mercedes-Benz CLS63 AMG with the GCA Performance ECU Tune from German Car Accessories. Developed specifically for the W218 CLS63 AMG equipped with the legendary 5.5L Twin Turbo M157 V8, this calibration delivers dramatic improvements in horsepower, torque, throttle response, and overall drivability.
Engineered with a performance-first philosophy, GCA Performance ECU tuning transforms the way your CLS63 AMG accelerates. Throttle response becomes sharper, boost delivery is optimized, and power is increased throughout the entire RPM range for stronger mid-range pull and relentless top-end performance. Whether you're driving on the street or enjoying spirited weekend drives, every press of the accelerator delivers instant confidence.
Our ECU tuning also includes advanced performance features such as configurable cold starts, enhanced exhaust burbles, speed limiter removal, and octane-specific calibrations. Your original ECU file is securely backed up, allowing your vehicle to be returned to factory settings whenever desired.
Both Stage 1 (factory downpipes) and Stage 2 (GCA Performance downpipes) calibrations are included at no additional cost, ensuring your tune matches your vehicle's current hardware configuration.
Features
- Developed exclusively under the GCA Performance line
- Optimized throttle response and turbocharger performance
- Increased horsepower and torque throughout the powerband
- Smoother and more responsive acceleration
- Stage 1 and Stage 2 calibrations included
- Factory ECU file securely backed up
- Fully reversible software installation
- One-Year Warranty included
Tuning Specifications
- Fits:
2012, 2013, 2014, 2015, 2016, 2017, 2018 Mercedes-Benz W218 CLS63 AMG RWD, CLS63 AMG 4MATIC, CLS63 S AMG – 5.5L Twin Turbo V8 M157 Engine - Downpipe readiness with check engine light suppression (for off-road use only)
- Enhanced exhaust acoustics with adjustable or extended burble settings
- Factory speed governor removal
- Octane-specific calibration based on your fuel quality
- Configurable cold start function (On/Off)
- 100% reversible, allowing you to return to the factory tune at any time
- Stage 1 (Factory Downpipes) and Stage 2 (GCA Performance Downpipes) available at no additional cost
Performance Gains
- Horsepower Increase: Up to 125 HP
- Torque Increase: Up to 175 lb-ft
Actual performance gains may vary depending on vehicle condition, fuel quality, and supporting modifications.
Tuning Process
- Detailed tuning instructions are emailed after purchase
- Flash your vehicle from home using the supplied tuning cable
- No ECU removal required
- Dedicated support is available throughout the tuning process
Transform your 2012-2018 Mercedes-Benz CLS63 AMG W218 with the GCA Performance ECU Tune. Delivering up to 125 additional horsepower, 175 lb-ft of torque, sharper throttle response, and fully customizable performance features, it's the ultimate software upgrade for unlocking the true capability of the M157 Twin Turbo V8.
