Finally got around to installing my 3rd FR mag shock today and observed some differences in the Delphi vs BWI manufactured Audi Magnetic Shocks.
The design of the Delphi manufactured AMR shocks look much sturdier with thick aluminum spring collars top and bottom while the BWI lower spring collar appears to be a thinner painted metal collar with a longer sleeve.
BWI (BeijingWest Industries Co., Ltd.) has modified the AMR shocks after it acquired Delphi in 2009 but the new design AMR shocks do not appear to be more reliable.
My observation is that the Delphi mag shocks are better. The first front pair of my failed Delphi shocks leaked so badly, they looked like they were dipped in oil, yet they continued to absorbed all bumps and never bottom out. Dampening felt softer, but worked fine and even continued to firm up in Sports mode.
On the other hand, my front BWI shock hardly has any oil leak and yet kept bottoming out over the slightest bumps. As the photos show, the BWI shock looks almost dry. They were removed from the car and not wiped clean before the photos were taken.
My advise is, if your Delphi made shocks fail, don't discard them so quickly. Try to repair or "regenerate" them with the Magnetic shock refurbishment services available.
I have lost faith in both the Delphi and BWI AMR shocks and will change to the non mag ride shocks once they fail again.
Anyone know which company manufactures the non mag standard, Plus or GT shocks? Cheers.