The S197 05-09 Mustang GT has become very popular since it's release. The 4.6L 3 Valve engine and fancy new styling gave anxious mustang fans just what they were waiting for. Easily upgraded the 2005, 2006, 2007, 2008 and 2009 models are all very similar with only a few small changes. One thing that Ford chose to do with the S197 was ditch one of the upper control arms and went to a single upper arm with a parhard rod and brace. This was a completely new setup for the mustang and left the aftermarket wide open to a bunch of new products designed to improve performance and handling. From control arms to K-members there's a lot of stuff available. In addition to suspension the S197 reacts vert well to bolt-on modifications such as tuners, cold air intakes and exhausts. Another very popular modification for these cars is to go with an aftermarket supercharger kit. Some kits are rated at 400hp while others range all the way up to 550hp. So depending on what you're looking to do with your S197 Lethal Performance has it all.