Well I upraded my dipped beams HID. See here http://z4-forum.com/forum/viewtopic.php?f=2&t=56909
This was the result

Then decided to try LED replacements to the main beams hoping to get better light output and retain the instant flash function but have very disapointed with the end result

As you can see the light pattern is not at all focused and a lot of light is thrown up and out
Compared to HIDs and thhe existing Halogens (=120% H7 55w)

So I think for now back to that and think again about upgrading the main beams to HID in the future
Norman
This was the result

Then decided to try LED replacements to the main beams hoping to get better light output and retain the instant flash function but have very disapointed with the end result

As you can see the light pattern is not at all focused and a lot of light is thrown up and out
Compared to HIDs and thhe existing Halogens (=120% H7 55w)

So I think for now back to that and think again about upgrading the main beams to HID in the future
Norman