I just installed my GT Spec Lower Tie bars, front and rear. PRetty simple and straight forward install. I haven't had a good chance to try them out yet, but from what I can tell they seem to be pretty decent.
Only problem is there were no instructions, although it was pretty simple to figure out. It really helps to have a lift and a couple of Nissan Master techs and any tool you need at your disposal.
I hope I can get to try these out a little better tommorrow, and can't wait till I get my Stillen sway bars to see how they work together.

 

Keep us updated. I'm also looking into buying their rear and front ltb, and combining it with the Stillen sways. So let us know if you feel any difference, and if you think it was worth the money.

 

They feel OK. Not a huge difference, but it is definitely a little more solid around the turns. Less body roll.

 

^ so theyre good then?