I'd post the question here:
http://www.ft86club.com/forums/showthread.php?t=45554
I do believe it's possible to have them installed in a way that creates a bind not allowing the swaybar (I assume that's what these endlinks are attached to) to move freely which could reduce grip. However for that to result in oversteer would mean they were installed in the back, sounds like they were put in the front? I'm no guru, @
Racecomp Engineering is.