S 63 AMG
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RENNtech ECU+ Upgrade | C217 | S63 AMG S 4MATIC | 773 HP/778LB-FT | 4.0L V8 BiTurbo | M177 | MY2018+
ECU+ Upgrade | Up to 773 HP / 778 LB-FT | Gains: +82 HP & +84 LB-FT