Akrapovic Wireless Sound Kit for Porsche Boxster and Cayman (981) mercedes-benz-clk-class--209---2004-2010--clk-63-amg-esr9002317 The R1 performance package includes

The R1 performance package includes our proprietary ECU tune and higher efficiency intercooler pump for increased

RENNtech ECU Upgrade for 230 - SL 550

the user can set the desired ride height using RENNtech App on their Apple and/or Android phone

lowering the temperature of the brakes and lessening the possibility of brake fade

R1 Performance Package for 171 - SLK 55 AMG

Akrapovic Wireless Sound Kit for Porsche Boxster and Cayman (981) mercedes-benz-clk-class--209---2004-2010--clk-63-amg-esr9002317 The R1 performance package includesAkrapovic Wireless Sound Kit for Porsche Boxster and Cayman (981) The optional Akrapovi Sound Kit enables owners of selected Akrapovi car exhausts to control the sound of the system from the cockpit of their machine. Using Akrapovi technology, drivers can easily switch between the quiet mode and a sportier sound. With the use of a receiver to drive the actuators that open or close the valves at the end of the exhaust system, drivers can use the Sound