Description
Disclaimer : Cancellations within 24 hours are subject to a cancellation fee. After 24 hours, a higher fee will apply.
Unlock the hidden performance potential of your 2013-2017 Mercedes-Benz S500/S550 W222/C217 with our GCA Performance ECU Tune. Developed with a performance-focused approach, this custom ECU calibration transforms the way your S-Class responds, accelerates, and delivers power.
This upgrade goes beyond simply adding horsepower. It enhances the entire driving experience by improving throttle response, strengthening torque delivery, and optimizing the full RPM range for smoother and more aggressive acceleration.
Designed specifically for the 4.7L Twin Turbo V8 M278 engine, GCA Performance tuning adjusts key engine parameters to maximize performance while maintaining reliable operation. From stronger mid-range pull to improved top-end power, your S500/S550 gains a sharper and more responsive driving feel.
GCA Performance securely saves your factory ECU data, allowing you to return your vehicle back to the original stock settings at any time.
We Stand Behind Our Products
- All items from us have a 1-Year Warranty!
Features
- GCA Performance custom ECU calibration
- Increased horsepower and torque output
- Faster throttle response
- Improved acceleration and power delivery
- Optimized engine powerband
- Octane-specific calibration based on fuel quality
- Adjustable exhaust acoustics with burble settings
- Factory speed limiter removal
- Configurable cold start behavior
- 100% reversible tuning process
Tuning Specifications
Fits:
2013, 2014, 2015, 2016, 2017 Mercedes-Benz
Compatible Models:
- S500
- S550
Body Styles:
- Coupe
- Cabriolet
- Sedan
Chassis:
- W222
- C217
Engine:
- 4.7L Twin Turbo V8 M278 Engine
Available Tuning Stages
Stage 1 Tune
- Designed for vehicles equipped with factory downpipes
Stage 2 Tune
- Designed for vehicles equipped with GCA Performance Downpipes
After purchase, tuning instructions will confirm the correct stage required for your vehicle. Stage 2 tuning is included at no additional cost.
Performance Gains
- Horsepower Gain: Up to +100 HP
- Torque Gain: Up to +100 TQ
Additional Tuning Options
- Downpipe readiness with check engine light suppression (for off-road use only)
- Enhanced exhaust acoustics with adjustable burble
- Factory speed governor removal
- Fuel-quality-specific calibration
- Cold start adjustment (On/Off)
Tuning Process
- After purchase, tuning instructions will be emailed to you
- Vehicle tuning is completed through a supplied cable connection
- Factory ECU data remains saved for easy restoration
Upgrade your 2013-2017 Mercedes-Benz S500/S550 W222/C217 with the German Car Accessories GCA Performance ECU Tune. Designed for the M278 Twin Turbo V8, this calibration delivers increased power, improved throttle response, stronger torque delivery, and a more exciting AMG-inspired driving experience.
