you need to have an remote to control. i guess there are levels for the sound.i mean level 1 is regular and it goes up to 5. level 5 is F1 sound. this is an special and best xhaust system i guess. i am thinking to buy for my car too.but its quite expensive.
try a flashlight.
K12SXXFire 1 year ago
hi.. can you tell me what is this valve for? I have one on my 330ci, but I dont know how to close/open it (its always open I think).
danielsdem 2 years ago
you need to have an remote to control. i guess there are levels for the sound.i mean level 1 is regular and it goes up to 5. level 5 is F1 sound. this is an special and best xhaust system i guess. i am thinking to buy for my car too.but its quite expensive.
hghway 2 years ago