1.auto part exhaust muffler,, 2.Full titanium high performance. 3.Suitable :BMW X6,Tip Diameter :114mm*2 1.auto part exhaust muffler,,2.Full titanium high ... performance.3.Suitable :BMW X6,Tip Diameter ... titanium tail tsui, can make the rear add Racing feeling. exhaust muffler for BMW X6 in the middle out ...