Exhalation valve (throttle) wirelessly controlled by a remote control. Enables control of exhaust gas flow and exhaust volume. The set consists of: 2 pcs - exhaust valve (exhaust throttle); 1 pc - control management unit equipped with a bluetooth module (the unit is designed to support max. Two throttles); 2 pcs - remote controls for opening and closing the damper. Single throttle kits are also included (for cars with single silencers).