They come with brackets for other applications but have side holes that line up almost perfectly with ours, so no modding at all
It's tedious to get the screws into the sides but once you do it's well worth it!
Make sure you know how to do some intensive wiring as these aren't
specifically made for KJs, but if you take your time and do it right they look great
As for wanting LEDs, you could try some bulbs first in your stock housings and see how you like them, although I'd get some HIDs instead as they'd be much brighter and have better spread
Here are some LED bulbs I got for my Challenger in some 1A Auto housings:
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You also have to remember that if you have an 05+ you'll never have good fog lights unless going with HID because of how high they are on the body
I've tried bulbs, projector LED fogs, fogs that had probably 50 LEDs each on them, and now these and these are the only ones that have been decent for me
Now, if you have 02-04 then that's a different story because I believe Spec-D or someone similar has projector fogs that work great and are a good price