VR Tuned ECU Flash Tune Mercedes CLS53 AMG 435hp C257 2018-2020

The Mercedes CLS 53 AMG 435hp ECU flash is available from VR Tuned. With ECU flashing not only do you gain horsepower and torque, driving characteristics are vastly improved giving you improved throttle response and better driveability.

Crank Horsepower Ratings:

• Stock Power 435hp | 383ft/lbs
• Tuned Power 525hp | 460ft/lbs

What are the benefits of our tuning?

• Our team of calibrators have tuned cars worldwide.
• ECU tuning is done to perform while being safe and reliable.
• With our ECU Flash, basic bolt-on performance parts will not require a retune of your ECU.
• For gasoline vehicles, if you add higher octane fuel, the ECU will adjust accordingly.
• We pride ourselves on customer service.
• Other custom enhancements are available if requested and applicable.

How to Flash Your ECU?

• We can bench flash the ECU. To bench flash the ECU, you must remove it from your vehicle and send it to us. Once we receive the ECU, we will prepare the tune file and then send it back to you for reinstallation. We do not open, solder, or modify the ECU board at all. Connections are done directly to the pins on the front of ECU.

For reference, this ECU is a Bosch MG1CP002.