[Kracka]

I'm honestly thinking they'll be fine. You rarely hear of anything but the 2008's breaking, and the 2014 version is the strongest one they've made yet. If properly engineered, plastic can be just as strong as metal while being lighter in weight and costing less to manufacture. I know people bitch about the plastic valve covers, but I think there are a few valid reasons for it such as heat retention and lower weight at the high point of the engine; the downsides are of course very apparent when you run a non-shielded tubular exhaust manifold though.