Exhaust Remote Kit (for Ferrari)**4. 6. 2021 Due to current supply chain limitations, may ship with a different style key fob than depicted** **Ships with Ferrari OEM style Plugs but can be hardwired for any make model** This onboard remote control kit gives you the option of opening your exhaust valves at the touch of a button. The reason to have exhaust back pressure control is to obtain a better engine torque band and to maintain drive ability in a wide range of conditions.