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 2009-2011 Mercedes-Benz E500 or E550 with the German Car Accessories Performance ECU Tune. Developed by German Car Accessories (GCA) under our GCA Performance line, this ECU calibration is specifically engineered for the 5.5L Naturally Aspirated M273 V8, delivering significant improvements in horsepower, torque, throttle response, and overall drivability.
Designed with a performance-first philosophy, this ECU tune transforms how your E-Class responds in every driving situation. Throttle response becomes sharper, acceleration is stronger throughout the RPM range, and power delivery is smoother and more immediate. Whether you're enjoying spirited driving or everyday commuting, the optimized calibration provides a more engaging and refined driving experience.
Every GCA Performance ECU Tune is customized to your vehicle and fuel quality for maximum performance while maintaining reliability. Both Stage 1 and Stage 2 calibrations are available. Stage 1 is designed for vehicles equipped with factory exhaust components, while Stage 2 is optimized for vehicles fitted with GCA Performance Downpipes. There is no additional charge for Stage 2 tuning.
Additional tuning 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 file is securely backed up, allowing your vehicle to be restored to factory calibration whenever desired.
After purchase, German Car Accessories supplies the required programming cable along with detailed tuning instructions, allowing you to perform the ECU flash safely and conveniently from home.
Every GCA Performance ECU Tune is backed by a 1-Year Warranty.
Fitment
Fits:
- 2009-2011 Mercedes-Benz E500
- 2009-2011 Mercedes-Benz E550
- W212 Chassis
- RWD and 4MATIC Models
- 5.5L Naturally Aspirated V8 M273 Engine
Performance Gains
- Up to 70 HP Increase
- Up to 70 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 Horsepower and Torque Delivery
- 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 E500 / E550
- Chassis: W212
- Engine: 5.5L Naturally Aspirated V8 M273
- Drivetrain: RWD / 4MATIC
- Tuning Stages: Stage 1 / Stage 2
- Installation Method: ECU Flash via Included Programming Cable
