Description
Disclaimer : Cancellations within 24 hours are subject to a cancellation fee. After 24 hours, a higher fee will apply.
Unlock the true performance of your 2012-2019 Mercedes-Benz SL63 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 5.5L Twin Turbo M157 V8, delivering substantial gains in horsepower, torque, throttle response, and overall drivability.
Designed with a performance-first philosophy, this ECU tune transforms the way your SL63 AMG performs. Turbo response becomes quicker, throttle input is significantly sharper, and torque delivery is stronger throughout the entire RPM range. Whether you're enjoying spirited canyon drives, highway pulls, or everyday cruising, your SL63 AMG will feel more responsive, more powerful, and more engaging behind the wheel.
Each GCA Performance ECU Tune is custom-calibrated to your vehicle and fuel quality to maximize performance while maintaining reliability. Both Stage 1 and Stage 2 calibrations are available. Stage 1 is intended 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 configurable cold start operation, factory speed limiter removal, 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 calibration whenever desired.
Following your purchase, German Car Accessories provides the required programming cable along with detailed tuning instructions, allowing you to flash your ECU safely and conveniently from home.
Every GCA Performance ECU Tune is backed by a 1-Year Warranty.
Fitment
Fits:
- 2012-2019 Mercedes-Benz SL63 AMG
- R231 Chassis
- 5.5L Twin Turbo V8 M157 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 SL63 AMG
- Chassis: R231
- Engine: 5.5L Twin Turbo V8 M157
- Tuning Stages: Stage 1 / Stage 2
- Installation Method: ECU Flash via Included Programming Cable
