I think it would be fun to have explosive chrome that doesn't just explode the person it's installed in, but also causes damage to other people in the room just like a typical bomb would. It could be detonated both manually and remotely just like the cortex bombs can.
I think based on the cost and probable difficulty of installing this chrome in someone (most likely unwillingly), the bomb should have a similar effect to that of a frag grenade or something just as damaging.
However, it would be an interesting twist if a mad ripperdoc could, for instance, install a drug grenade inside someone's head and detonate that remotely, killing the person just for the sake of making the people around them high.