yeah my HR31 owning mates had them on their Passage and GTS-X respectively, the problem with em is that you can't really fit a front mount cooler around them at all, and yeah the motors are fairly heavy. They look cool though It pisses me off that the model earlier has stuff like rain sensing wipers, auto headlights and auto spoiler, but my R32 has none . From what I've read they were an option across the R32 range, though I've never actually see one. Dunno about R33, but maybe so.