Description
Disclaimer : Cancellations within 24 hours are subject to a cancellation fee. After 24 hours, a higher fee will apply.
Unlock the full performance potential of your 2014-2020 Mercedes-Benz S650 Maybach, S680 Maybach, or S65 AMG with the German Car Accessories Performance ECU Tune. Developed by German Car Accessories (GCA) under our GCA Performance line, this precision ECU calibration is specifically engineered for the 6.0L Twin Turbo M279 V12, delivering substantial gains in horsepower, torque, throttle response, and overall drivability.
Designed with a performance-first philosophy, this ECU tune transforms the way your flagship Mercedes accelerates and responds. Throttle input becomes immediate, turbo spool is quicker, and torque delivery is stronger throughout the entire RPM range. Whether you're cruising in a Maybach or unleashing the power of an AMG V12, this calibration provides smoother power delivery, stronger mid-range acceleration, and noticeably improved responsiveness.
Every GCA Performance ECU Tune is custom-calibrated to your vehicle and fuel quality to maximize performance while maintaining factory reliability. Both Stage 1 and Stage 2 calibrations are available. Stage 1 is designed for vehicles equipped with factory downpipes, while Stage 2 is optimized for vehicles fitted with GCA Performance Downpipes. There is no additional charge for Stage 2 tuning.
Additional features include factory speed limiter removal, configurable cold start operation, adjustable exhaust burble settings, and check engine light suppression for compatible off-road downpipe applications. Before tuning begins, your original ECU software is securely backed up, allowing your vehicle to be restored to factory settings whenever desired.
Following your purchase, German Car Accessories provides the required programming cable and comprehensive flashing instructions, allowing you to tune your ECU safely and conveniently from home.
Every GCA Performance ECU Tune is backed by a 1-Year Warranty.
Fitment
Fits:
- 2014-2020 Mercedes-Benz S650 Maybach
- 2014-2020 Mercedes-Benz S680 Maybach
- 2014-2020 Mercedes-Benz S65 AMG Sedan
- 2014-2020 Mercedes-Benz S65 AMG Coupe
- 2014-2020 Mercedes-Benz S65 AMG Cabriolet
- W222 Sedan Chassis
- C217 Coupe Chassis
- 6.0L Twin Turbo V12 M279 Engine
Performance Gains
- Up to 100 HP Increase
- Up to 100 lb-ft Torque Increase
Features
- Designed by German Car Accessories (GCA)
- GCA Performance ECU Calibration
- Stage 1 Tuning Available
- Stage 2 Tuning Available (GCA Performance Downpipes)
- No Additional Charge for Stage 2 Calibration
- Faster Throttle Response
- Improved Turbo Response
- Increased Horsepower and Torque
- Optimized Powerband Performance
- Octane-Specific ECU Calibration
- Factory Speed Limiter Removal
- Adjustable or Extended Exhaust Burble
- Configurable Cold Start Function (On/Off)
- Downpipe Check Engine Light Suppression (Off-Road Use Only)
- Factory ECU File Securely Backed Up
- 100% Reversible to Factory Software
- Programming Cable Included
- Detailed Installation Instructions Provided After Purchase
- Backed by a 1-Year Warranty
Specifications
- Brand: German Car Accessories
- Product: Performance ECU Tune
- Vehicle: Mercedes-Benz S650 Maybach / S680 Maybach / S65 AMG
- Chassis: W222 / C217
- Engine: 6.0L Twin Turbo V12 M279
- Tuning Stages: Stage 1 / Stage 2
- Installation Method: ECU Flash via Included Programming Cable
