Another amazing review by Former_Boosted_IS:
The trend of snapped half shafts (axles) on the entire 335i & 135i platforms has been increasing rapidly since many people have surpassed the 400 rwhp / 400 rwtq mark. To be honest, the trend is a bit disturbing.
We have members on the forums who have broken three sets of half shafts on their car! Some refuse to track their car because they fear breaking more half shafts and they don’t want the embarrassing “tow of shame” home. I will even admit I have been very concerned about slapping on some drag radials or slicks because I just didn’t want to deal with breaking mine. We have seen failures with both the half shaft’s bar and within the inner universal CV. It has even been hinted that one of the tuners snapped his half shafts during a run at the track. This is clearly the single weakest link we have seen thus far on the drive train of all N54s. If we are to move forward with big power on the N54 then it means we have to identify the weak links and find fixes. The big problem is that there have been no option for half shaft upgrades at all… oh, that is until now.

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