Description
Disclaimer : Cancellations within 24 hours are subject to a cancellation fee. After 24 hours, a higher fee will apply.
Transform the driving experience of your 2024+ Mercedes E450 or E53 AMG with the GCA Performance ECU Tune from German Car Accessories. Developed under our GCA Performance line, this precision ECU calibration delivers stronger acceleration, sharper throttle response, increased torque, and improved power delivery throughout the entire RPM range.
Our ECU tuning is designed specifically for the 3.0L turbocharged M256 engine, providing a noticeable increase in performance while maintaining factory-like drivability. Whether you're looking for a more responsive daily driver or maximum performance from your W214, this tune offers optimized calibrations tailored to your vehicle and fuel quality.
Every original ECU file is securely backed up before tuning, allowing you to return your vehicle to factory settings whenever needed.
Fits
Mercedes-Benz E-Class (W214 Sedan)
- 2024 Mercedes E450
- 2025 Mercedes E450
- 2026 Mercedes E450
- 2024 Mercedes-AMG E53
- 2025 Mercedes-AMG E53
- 2026 Mercedes-AMG E53
Engine: 3.0L Turbocharged Inline-6 (M256)
Features
- Developed by GCA Performance
- Up to 75 HP and 100 TQ increase
- Faster throttle response
- Increased horsepower and torque throughout the powerband
- Optimized ignition, boost, and fuel mapping
- Octane-specific ECU calibration
- Factory speed limiter removal
- Adjustable or extended exhaust burble settings
- Configurable cold start function (On/Off)
- Stage 1 (Factory Downpipes) and Stage 2 (GCA Performance Downpipes) tuning available
- Check engine light suppression for off-road downpipe applications
- Factory ECU file securely backed up
- 100% reversible back to stock
- 1-Year Warranty
Performance Gains
- Horsepower Increase: Up to +75 HP
- Torque Increase: Up to +100 TQ
Important Notes
- Vehicles are equipped with a factory torque and horsepower limiter. Installing a CPC Module is recommended to achieve maximum advertised gains. Without a CPC Module, gains of approximately 60 HP and 60 TQ can still be achieved.
- Factory ECUs are locked. If an ECU Unlock is not purchased, you must arrange to have the ECU unlocked before tuning can be completed.
Tuning Process
- After your purchase, detailed tuning instructions will be emailed to you.
- Your vehicle can be tuned using the supplied tuning cable.
- If you purchase the ECU Unlock option, complete unlock instructions will also be provided.
Professional Installation
Professional installation is strongly recommended to ensure proper tuning and optimal vehicle performance.
Disclaimer
This product is intended for off-road, racing, competition, or track-use vehicles only. Modifying or disabling emissions-related equipment on pollution-controlled vehicles may violate local, state, or federal regulations. Aftermarket ECU tuning may affect emissions compliance, drivability, factory warranty, insurance coverage, and long-term reliability. The purchaser assumes all responsibility for installation and use of this product.
