There is a guy on Clubgp that is selling a GMPP sway bar. I just replaced the Sway bar on the Gf's car its a 2004 Buick Regal, same as ours. I got the dorman replacement and the dorman one is twice and big (Round) and twice as heavy. The one i get from dorman is about $90. He wants $105 Shipped i just want to know if there is any difference?