ERY47S Model: A12. Diameter of the silencer: 8cm . The muffler serves to muffle the noise coming out of the engine. Straight through design to increase and provide maximum airflow for your vehicle’s exhaust system. Made of stainless steel car silencer with innovative design universal style. The car steel muffler work perfect for custom exhaust system or as a decoration. Mildly increase exhausts and give driver better driving experience. Easy to install and perfectly protect the environment. Suitable for most of vehicles.   Package Details Weight: 429.07 g Size: 16.5*10*9.8 cm Package Includes 1 × Car Muffler