I also want to add the install for the M5 front sway bar is super easy. You can do it with the car on ramps in no more than 30mins and thats taking your time.
I normally DIY all of my parts but now with a baby I decided to let my shop do it. I watched the whole process and it was in and out in 30mins and that includes getting the car on and off the lift. Theres maybe a dozen small bolts that holds the belly pan up and once that is off you have a total of 6 bolts that holds the sway bar in place. Its in a area that isn't blocked by anything and you can reach all of the bolts with ease.
My stock front sway bar