Great question! Basically, a body kit means a set or “kit” of modified parts that you can install onto a standard car to modify its body.
For a front bumper kit, it’s around $360. For a rear bumper kit, you’ll usually only have to pay around $115.
Keep in mind, though, that those prices are for the kits (meaning the parts) only. If you want to have a mechanic install them for you, you’ll have to pay their hourly rate. Most mechanics charge about $80-$100 per hour.