I have not seen these on a crossfire but being there the same as the r170 all i could come up with is pics. Brabus is the best of the best when it comes to MB some might argue Carlsson is right there with them but all arguements aside this is one of those deals you will be kicking yourself if you pass up. REMEMBER looking at these pics I believe these are 19s the startech crossfire has 20's. ALso these should work for the SRT6 it is of coarse buy at your own risk because I dont think brabus put them ever on an SRT6. In our favor its a pretty safe bet, Here is the deal and my reasoning. The eibach kit is the same for both cars why wouldnt the brabus kit be the same??? If it fits one it has to fit the other ?? THe same rule of thumb can be applied when it comes to the koni springs. I am 75% sure these will work for our SRT6. ASk Anthony but for all I know these could be the same as the eibach springs just painted silver. Although people on MBworld have been talking like this kit is better.