Baja designs S8 bar fits and is alot brighter than your visionx. Or use hood mounts. A pair of BD xl80s on hood mounts will light up a lot more than the vision x on bumper mounts.
Or cut out the grill shutters and make your own mounts. Not much is made for vision x stuff.
Also if you ever put a bigger intercooler in or most bumpers you'll have to take the bar out from behind the grill anyway.