This high Quality set of muffler heater control box valves is the perfect addition to any vintage Porsche 356 A. These items may fit later 356 models. Made from high-quality polished stainless steel, these valves are durable and will resist corrosion over time. The set comes with two valves, one for the left and one for the right side of the vehicle. They are easy to install and will provide optimal performance without compromising the style of your Porsche. The brand is Stilcar and the other part numbers are 64421102100/64421102200.