I heard nothing but great things about Koni, so I went with their STR.T's in my '06 GT and also added some Eibach springs which dropped it 1.5" all around. Absolutely loving it right now. Im not a track person so I opted out of the more expensive Koni "yellows" and I picked up these "street" level struts and shocks for $320. My ride is perfect for these bumpy roads here in New York City.
'06 Screamin' Yellow GT... Airaid CAI, BBK LT's & catted X, Corsa Xtremes, BAMA 91, Koni STR.T, Eibach Pro-Kit, J&M Panhard, 19" AMR's, 6K HIDS, Kenwood DDX419, Shaker 1000