Note:
The aftermarket O rings look fine. They swell with use.That can be a good thing.They certainly do not leak. They are problematic to extract w/o the bolt hack tool.
The bigger problem is o-o-r tubes
[QUOTE=jakeru;
Gelbster: Based on your information, it seems people should steer clear of aftermarket o-rings and tubes. Why anyone would purposely plan to put ill-fitting parts on their nice Porsche, is beyond me...
[/QUOTE]