4.BMW E71 X6 "Passing Sound" First cat,-back Kreissieg F1Sound Valvetronic Exhaust system

3.BMW E71 X6 "Start Sound" First cat,-back Kreissieg F1Sound Valvetronic Exhaust systemSee more

3.BMW E71 X6 'Start Sound' First cat,-back Kreissieg F1Sound Valvetronic Exhaust system

1.BMW E71 X6 "Blipping Sound(F1mode)" First cat,-back Kreissieg F1Sound Valvetronic Exhaust systemSee more

1.BMW E71 X6 'Blipping Sound(F1mode)' First cat,-back Kreissieg F1Sound Valvetronic Exhaust system

5.BMW E71 X6 "Tunnel Sound (part.1)" First cat,-back Kreissieg F1Sound Valvetronic Exhaust systemSee more

5.BMW E71 X6 'Tunnel Sound (part.1)' First cat,-back Kreissieg F1Sound Valvetronic Exhaust system

4.BMW E71 X6 "Passing Sound" First cat,-back Kreissieg F1Sound Valvetronic Exhaust systemSee more

4.BMW E71 X6 'Passing Sound' First cat,-back Kreissieg F1Sound Valvetronic Exhaust system

6.BMW E71 X6 "Tunnel Sound (part.2)" First cat,-back Kreissieg F1Sound Valvetronic Exhaust systemSee more

6.BMW E71 X6 'Tunnel Sound (part.2)' First cat,-back Kreissieg F1Sound Valvetronic Exhaust system

17.BMW E71 X6 "Street Sound (part.11)" First cat,-back Kreissieg F1Sound Valvetronic Exhaust SystemSee more

17.BMW E71 X6 'Street Sound (part.11)' First cat,-back Kreissieg F1Sound Valvetronic Exhaust System

9.BMW E71 X6 "Street Sound (part.3)" First cat,-back Kreissieg F1Sound Valvetronic Exhaust systemSee more

9.BMW E71 X6 'Street Sound (part.3)' First cat,-back Kreissieg F1Sound Valvetronic Exhaust system

Actual