I put some of these in my '09 RT, they annoyed everyone and I took them out again. Unfortunately there is too much light coming directly out of the front and there is no baffle to prevent this, which means that overhead gantries are perfectly lit. They provide a nice even light, which is great, so long as you don't have to co-exist with other road users.
The problem with these (and all LED replacements) is that the original tungsten sources are much smaller, basically a 4mm long filament, and the reflectors are designed around this. an LED source like these is a lot larger, and the light comes from a position relatively far away from the design position, which means the reflector is wrong for the lamp.