For sale is one upgraded exhaust valve actuator spring kit. This spring is made from an improved alloy stainless steel that resists breakage like the factory actuator springs. If you hear a rattle or have exhaust related fault codes chances are your factory actuator spring may have broken. The kit also includes new lock nuts for the actuator mount. Please ask any questions you may have before buying. This kit will fit the following models: 2015-2022 Porsche Macan