Mercedes GL550 ECU Tune
Illustrative curve based on peak gains. Actual dyno results vary by vehicle, supporting modifications, and ambient conditions — final numbers confirmed at flash.
Remote or in-shop calibration via OBD-II
Calibration matched to your vehicle platform
Return to stock at any time, no trace
Free re-flashes and tuning updates for life
- Vehicle and hardware review before install
- Stage recommendation matched to current modifications
- Remote or in-shop flash path
- Post-flash support for drivability questions
Frequently Asked Questions
Answers for common fitment, installation, and support questions.
Under the Magnuson-Moss Warranty Act, a dealer cannot void your warranty simply because an aftermarket modification is present.
We offer two options: remote flashing via an OBD-II device we ship to you, or an in-shop appointment at our Deer Park, NY location. Both methods take under an hour.
Yes. Every Gintani tune is fully reversible. We store your factory calibration and can restore it at any time.
Remote installs typically take 30–45 minutes. In-shop appointments are usually same-day, with optional dyno time available when the build calls for it.
We offer custom calibrations for modified vehicles. Contact us with your mod list and we'll build a tune matched to your setup.