Both H7R and Eibach are solid bars. I've felt the weight of the Eibach ones and they are basically like bent barbells, they are that heavy 
Methinks you need to get to the Gym and work out Hurdy if you find them heavy..... 
lol - you might be right

Seriously though, if you can save 5kg on the car, can afford the Autotech ones, then isn't it worth it?