Description
Disclaimer : Cancellations within 24 hours are subject to a cancellation fee. After 24 hours, a higher fee will apply.
Unlock the full potential of your 2012-2018 Mercedes-Benz CLS63 AMG with the GCA Performance ECU Tune from German Car Accessories. Designed specifically for the W218 CLS63 AMG equipped with the legendary 5.5L Twin Turbo V8 M157 engine, this performance calibration transforms your vehicle's power delivery, throttle response, and overall driving experience.
Engineered with a performance-first approach, GCA Performance ECU tuning optimizes your CLS63 AMG's entire powerband for stronger acceleration, improved torque delivery, and sharper throttle response. From powerful mid-range pulls to increased top-end performance, every aspect of the engine calibration is refined to deliver a more responsive and engaging drive.
Your factory ECU data is securely saved, allowing you to return your vehicle back to the original factory settings at any time. With customizable performance features including cold start adjustments, enhanced exhaust acoustics, speed limiter removal, and fuel-specific calibration, this tune provides the perfect balance between everyday drivability and high-performance capability.
Both Stage 1 (factory downpipes) and Stage 2 (GCA Performance downpipes) tuning options are available at no additional cost, allowing the calibration to match your vehicle's modifications.
Features
- Developed under the GCA Performance tuning line
- Increased horsepower and torque output
- Improved throttle response and acceleration
- Optimized power delivery across the RPM range
- Enhanced exhaust sound characteristics
- Adjustable burble settings
- Factory ECU backup and full reversibility
- Stage 1 and Stage 2 tuning included
- 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 extended or adjustable burble
- Factory speed governor removal
- Octane-specific calibration based on fuel quality
- Adjustable cold start behavior (On/Off)
- 100% reversible factory restoration capability
- Stage 1 (Factory Downpipes) and Stage 2 (GCA Performance Downpipes) tuning available
Performance Gains
- Horsepower Increase: Up to 125 HP
- Torque Increase: Up to 175 lb-ft
Actual gains may vary depending on vehicle condition, fuel quality, and supporting modifications.
Tuning Process
- Tuning instructions are emailed after purchase
- Vehicle is tuned using the supplied programming cable
- No ECU removal required
- Guided installation process for easy setup
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 customizable performance features, this software upgrade unlocks the true capability of the M157 Twin Turbo V8.
