I have the whiteline 26mm front sway and 25mm adjustable perrin rear sway with perrin stout mounts and endlinks and its awsome. I love the feel of the car for everyday use. Took care of the body roll for the most part, and I think it doesnt oversteer or understeer, its just perfect for me and my driving habits. Mind you, I'm still on stocker tires with 22k on them...lol, need new tires now.

 

sorry for my ignorance but the whole percentage thing confuses me,lets talk about the front bar,does 120% mean stock plus 20% stiffer or is it 120% stiffer,so as for the rear bar on hard does that mean its twice as stiff stocka at 200% stiffer