I decided against the Megan arms after seeing how heavy they were.
The bearings on my Rogue toe arms went bad from general use and the accelerated wear from going to the track. VAC Motorsports suggested replacing them with top-quality Aurora bearings, which I did along with full rod end boots (the 'dust covers' the RE arms came with were a joke). So far so good.
2011 BMW E92 335i - Le Mans Blue/Black, 6MT, M Sport package