1. What is the difference between the GMG rear bumper splitter and the GMG rear valance extension?
2. Is it just me, or does the CF weave look much smaller on the GMG pics than on the Senner pics? It seems to me that, unless GMG changed their CF manufacturer at one point, Senner got their parts from someplace other than GMG. That supplier would be nice to know, since I like the weave on the Senner CF parts much better than the weave on the GMG CF parts.