CODE:25-71-04Full exhaust muffler Stainlesssteel exhaust pipe: φ38.1Stainless steel Tail pipe: φ60.5Aluminum Silencer: 350mm (SESMIC-IV)Volume: 96d B (proximity)/81dB (acceleration)Weight: 7.0kg (STD: 11.7kg)Government-certified muffler (compatible model: 2BL-ZR900C)2016 noise regulation/2019 exhaust gas : 〇Filter: ○Tandem: 〇 (tandem relocation plate included)-----------------When using NITRON, Aragosta, and OHLINS suspension together, please purchase the NITRON/Aragosta tandem relocation plate ( 90-71-00B ) separately.