Is it worth putting on then, or should i just bring it back and get an actual swaybar.

Since i've been getting my parts there for a long time now, i don't think he intentionally tried to screw me over though.

What effect would a tiebar have on the car's handling and such?

Could i just attach it to one of the holes where the swaybar should be attached or am i right about having the dettach the lower control arms first?