bumper led "accent" light upgrade?

I like the fact that Scion put the housing for these "accent" lights on the lower outside bumper.



But, I would like much more light output, more like a fog light, or much brighter LED's, like maybe 6in led bars, like offroad vehicles use.

Does anyone have any knowledge to do this, or if there are plug and play bulbs?

Maybe someone did HID conversions?

Im coming from a vehicle with HID's in my fogs, and I'd like to use these light housings, instead of dropping the coin for the Scion fogs, and getting bent over at the stealership

Any input would be appreciated

Thanks