THOR LEVEL 3 An advanced kit combining a powerful titanium-steel alloy THUNDER speaker and a high-strength plastic STORM speaker for maximum depth and sound density. The low frequencies are felt by the body, the middle ones are clear, the upper ones are expressive. Each acceleration feels like a real engine response, giving the car the character of a real sports car. The system has been suitable for vehicles since 2005. Management is carried out through a mobile application. Included: THUNDER 2.0 ECU STORM UPGRADE PRO