This is my 05 645ci. sitting on 21in wheels. Goes into shop on the 26th for 22in rims and lowered on H & R springs. Just started working on the System. More pics to follow after rim install...Looking for advice on how to hook up a base amp to this system.

Here are the New 22s.

Had the 22s painted to match the car.

And then went with the H & R springs. waiting 3 weeks then going to go back and try to lower the front another half in.