It's not dificult to replace the boots just messy.
YOU will need new bands for the inboard boot as well as the outer boot
kit.  Pull the axel, slide the inner boot back, remove the snap ring pull
the inner end off. Then you can replace the outer boot, reassemble the
inner & your all set.  YOU will need the special tool to tignten the axel
boot clamps I would also order new axel retainer
clips--- order at least a week ahead of time from your dealer

Dealer will sell you a boot kit.  No problem.

I was replacing the brakes on my GF's Elantra and saw that the outer CV
boots are torn.
Does Hyundai sell just an outer CV boot replacement kit, or do I need to buy
a whole axle assembly? my other choice would be to get a rebuilt axle and
turn in my cores I guess... The joints arn't clicking, yet.