So I'm looking for new sway bar for my 2.2l cobalt sedan. I installed new megan racing springs this summer with a 2.2'' drop so the stock sway bar lasted 3 weeks... I don't know which is better between Powergrid one's or the overkill engineering motorsports?

There is the links...

Powergrid Sway Bar End Links

Solid Sway Bar End Links

 

powergrids last forever contact chip at powergrid dot com.
overkill wont last long in the real world. Not sure why the sway bar didnt last long for you; they dont break, but they do move side to side in the pillow blocks, I have clamps to fix that. OEM, the sway bar plastic retainer sleeve doesnt last long.