I recently bought a 2007 R56 with 91k miles, completely stock. (I've never seen a car so old that has not been modified in any way.) I figured I would start with the handling mods first, so I picked up the ST XTA Coilovers from Tunersports, the polyurethane rear bushings from Madness Motorworks, and the nm Engineering 22mm Rear Sway Bar from Custom Cars Central. I haven't seen much on this site about the ST stuff, so I figured I would post some pictures of the coilovers. They really are nice. The build quality is pretty amazing for an $1100 coilover made in Germany by KW.

 

A couple more pictures.

 

I plan on installing them this weekend. I will post before and after pictures of the car.

 

I am looking to do coilovers in the foreseeable future and would really appreciate a review. I am really looking for performance above all else, my R56 will likely be turned into a track car but for now its my DD. Are the ones you go adjustable? Let me know how the ride changes and if its noisier. Looking forward to hearing from you and good luck! Should be awesome.

 

They are adjustable for height and for rebound. They do not have the compression adjustment that the KWs have.