RENNtech ROM Software | VMax Increase | M176 Engine rolls-royce-phantom-coupe-esr5447465 and control for off-road vehicles

and control for off-road vehicles

ECU+ Upgrade | Up to 773 HP / 778 LB-FT | Gains: +82 HP & +84 LB-FT

CLASS S LONG (W 221) 350 V6 Blue Efficiency (HP: 306 | Year: 11 > )

Made from rich

dealer charges

RENNtech ROM Software | VMax Increase | M176 Engine rolls-royce-phantom-coupe-esr5447465 and control for off-road vehiclesThe VMAX module raises the factory speed limiter. The RENNtech Option Modules (ROM) are electronic modules that offer quick solutions to override electronic factory settings and restrictions. Installation is done in minutes through the OBD II port, and requires no tools. Fitment : 20182020 W222 S560 20182021 C217 S560 20202023 X167 GLS580 20212023 V167 GLE580 20162018 W463 G550 20172018 W463 G550 44 20192024 W463A G550