Front swaybar endlink problem
 

I was trying to install my coilovers today but I could not remove the bottom bolt to remove the endlink, it feels like it's impossible. How did you guys do it?

I am trying to install stance coilovers but the factory endlinks are too long for it.

Any help would be appreciated

You might need to use an allen key

Depending on how old your car is, you'll probably have to cut it off. Even with the proper tools, mine wouldn't come off at all, they were rusted solid.

had the same experience when installing my whiteline sway bar.

use a 17mm open ended wrench and a 6mm allen key to stop it from spinning.

my allen stripped out because it was so rusty so i ended up cutting it off with a sawzall

That's EXACTLY what happened with mine.

I removed mine using a Milwaukee M12 Fuel cordless impact. If you don't have an impact, you'll have to do as suggested above and go the open wrench (or pass-through socket if you have it) and allen wrench method to keep it from spinning.