This product is for Racing Competition only and is not legal for use in highway or street vehicles or other non-racing competition off-road vehicles.
Purchasing this product requires you to sign our Vehicle Compliance Waiver here.
Get your Mercedes-Benz S-Class (W221) S 350 CDI tuned with the Version 2 tuning box kit from VR Tuned. The tuning box kit is a plug and play solution to boost your vehicles performance up like an ECU flash, but without affecting your warranty. The VR Tuned ECU Tuning Box Kit gives your Mercedes-Benz S-Class (W221) S 350 CDI a gain in power from 240bhp to 303bhp!
With manufactures trying to increase fuel economy by adding forced induction to vehicles that previously had large displacement engines, the ability to tune them further is even more prevalent now. However there are 2 main issues with tuning these newer vehicles. The manufactures have gotten very particular about having their ECUs accessed to be tuned. These "anti tuning" features make it hard to read and write the ECU via the OBDII port. Some ECUs can be removed and flashed on the bench once the case is open. This is an immediate flag to the dealer which ultimately will void your power train warranty if a situation arose. This is where the VR Tuned Tuning Box Kits come into play over the competition.
Engineered for boosted cars, these vehicle specific plug and play kits are designed to easily be installed and uninstalled as needed. The harnesses feature OEM plugs that attach to necessary sensors where the pre-mapped tuning box gives your vehicle huge amount of performance gains. Unlike other "piggyback" solutions, these use high quality connections, wires, and casing that are designed to be engine mounted for longevity to the elements.
Each Tuning Box Kit has been engineered and tested to work in even the most extreme environments of altitude, temperature, and driving conditions. If you have any questions in regards to the VR Tuned ECU Tuning Box Kit for the Mercedes-Benz S-Class (W221) S 350 CDI 240bhp, please contact one of our Performance Specialists.
WARNING: Cancer and Reproductive Harm
Wald International Version 3 Aerodynamic Body Kit Mercedes S350 / S430 00-06
Wald International Version 3 Trunk Wing Mercedes S350 / S430 00-06