Description: 1. Metal production materials, durable use. 2. Reduces deep sound while also reducing noise pollution. 3. Easy to install. 4. The product is perfectly matched with the original machine. Specification: Product Name: SliencerMaterial: MetalColor: SliverLength: approx.175mmOuter Diameter:48mmThread Size:5mmType: AngledCompatible With: fit for installation on the exhaust pipe tail exhaust pipe diameter size of 48mm. Note:1. Suitable for exhaust pipe with a diameter of 48mm.Please compare the one with your original one before purchasing. 2. Please allow 0.5-1 inch difference due to manual measurement.(1inch=2.54cm) 3. The color of the actual items may slightly different from the listing images due to different computer screen, thanks for your understanding. 4. Instruction is not included,professional installation is highly recommended. Package Included:1 X Muffler Silencer ,,,,,,,,