221 - S63 AMG
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RENNtech R3+ Pkg | W221 | S 63 AMG | Sedan | 840 HP / 945 LB-FT | M157 | 5.5L V8 BiTurbo | MY2006-13
R3+ includes: ECU Upgrade, Diverter Valve, Air Filters, Sport Mufflers, Turbocharger Upgrade, Downpipes w/Cats and Intercooler Upgrade | Gains: +277HP; +351LB-FT