That guy got those Eibach F10 m5 as a test spring in 2012. You are right, technically, they don't exist and there may have been some subtle tweaks and adjustments over the last 12 months. I asked Eibach USA last year, in turn, they asked thier Eibach Germany testing facility to provide some feedback. As many know, these Eibach springs are more or less the same as the ACS springs with probably minor differences.
Quote:
Originally Posted by RPiM5
I found out that there is a part# that exists for Eibach Springs for an F10 M5 but the springs do not actually exist. If anyone sells you Eibach Prokit Springs with the Eibach Part Number they are probably Eibach 550i Springs sold to you that say F10 M5 on the box such as is the case here. I forget what the particular part# is, but I found this out by talking to Eibach and Trinity Autosport.
Therefore, I don't know where those Australian dudes got those springs, but they are most likely Eibach 550i Springs. Lol!
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