RENNtech EVM | Exhaust Valve Module | Alfa Romeo mercedes-benz-g-class--463---1990-2018--g63-amg-esr9701448 Maserati Quattroporte S Q4 (M156)

Maserati Quattroporte S Q4 (M156) 2018+

Roma (MY2020+)

Mercedes-Maybach S 600 BiTurbo (W222 - M277 6

565wtq @ 4

RENNtech EVM | Exhaust Valve Module | Alfa Romeo mercedes-benz-g-class--463---1990-2018--g63-amg-esr9701448 Maserati Quattroporte S Q4 (M156)EVM Exhaust Valve Module (Remote Controlled) NOT SO FUN FACT: Sportscars equipped with factory exhaust valves, with or without a center console button to open or close them, the factory settings do NOT allow the valves to fully open unless certain speed and or RPM have been reached. For example, while cruising the exhaust valves will never fully open! THE EVM SOLUTION: By pressing Button 1 on the remote control, RENNtechs Exhaust Valve Module (EVM)