S 550 BiTurbo
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RENNtech EVM | Exhaust Valve Module
RENNtech Exhaust Valve Module | Permanently Open Exhaust Flaps. 222 - S 550 Sedan and 217 - S 550 Coupe -
RENNtech ECU Upgrade | W222 | S 550 | 500HP / 625TQ | 4.7L V8 BiTurbo | M278
ECU Upgrade | 500HP / 625LB-FT | Gains: +26HP / +59LB-FT -
RENNtech | Stainless Steel Sport Mufflers w/Valves | S550 | W222 | 4.7L BiTurbo V8 | M278
RENNtech Stainless Steel Sport Mufflers w/Valves for the W222 - S550 BiTurbo. Gains: up to 10 HP & 15 TQ. -
RENNtech 550 Sport Package | W222 | S 550
RENNtech 550 Sport Package for W222 - S 550. Includes ECU Upgrade, Carbon Fiber Decklid Spoiler, Stainless Steel Sport Mufflers and Optional RENNtech Deep Monolite wheels. -
RENNtech EVM | Exhaust Valve Module
RENNtech Exhaust Valve Module | Permanently Open Exhaust Flaps. 222 - S 550 Sedan and 217 - S 550 Coupe -
RENNtech ECU+ Upgrade | W222 | S 550 | 540HP / 705TQ | 4.7L V8 BiTurbo | M278
ECU+ Upgrade | 540HP / 705LB-FT | Gains: +66HP / +139LB-FT