... ,,2.Full titanium high performance.3.Suitable :BMW X6,Tip Diameter :114mm*2Titanium alloy in tailpipe on the application and features ... it has excellent comprehensive performance, density is small, than high strength. Titanium alloy steel and higher than strength, toughness and ... blue light j titanium tail tsui, can make the rear add Racing feeling. exhaust muffler for BMW X6 in the middle out muffler