BMW ALPINA B3S exhaust flap does not work, after vacum pipe repaired.
BMW ALPINA B3S Exhaust flap does not work,after vacum pipe repaired.
e90, e92, e93 BMW Exhaust Flap Rattle Fix
http://www.carlifedaily.com for more! This happens to a large amount of these cars. If you drive a e90, e92, e93 or maybe other ones, this will definitely help you at one point. This mod also makes your Exhaust sound very nice (a tiny bit louder)