I'm getting ready to finalize my setup on my 330L and was wondering how guys are mounting their ignition modules? At this time I'm leaning on mounting the module to the side of my engine box. If I go with this method, what is the preferred way of securing the module (e.g. zip tie, velcro, or rubber band)? If anyone has any ideas or prefered methods that have worked well for them in the past, I would appreciate if you could share.

Thanks!