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Audi A8 S8 4H
Power increase: +15 hp / +18 ft-lb torque
Black lettering / logo / emblem for the front / for the radiator grille with red diamond
3K 12/2004-12/2012 E91 325 xi station wagon petrol 160 KW 2497 cc 6 cylinders Yes BMW 3 Series Touring (E91) 390L
M390 02/2004-02/2012 318 i Stufenheck Benzin 95 KW 1995 ccm 4 Heckantrieb BMW 3er (E90) 390L
Mercedes C43 AMG W205 Active Valve Control Klappensteuerung RSQ3 8U (2011-2018) Audi A8 S8 4HM21GW60IDEIDUG]{display: flex; flex direction: column} With Active Valve Control, you gain complete control over your exhaust valves. Whether you want to enjoy the exhaust sound with permanently open valves or prefer a quieter, closed valve sound, the module is plug and play connected to your vehicle, preserving the original condition. It requires no external buttons or remote controls; it can be easily operated using the original controls or via an
