Originally Posted by SRT6_Roadster
There is an outstanding question on how much stainless brakelines will help with the car. The OEM rubber lines are supposed to be 'very stiff' from the factory.
I am assuming the brakes on the SRT-6 are the same as the SLK32. Working on that assumption you can upgrade the rotors to first gen E55 floating rotors.
Using SS lines on some of my past M.B.'s I can say it helps with the "feel" but does not make the car stop faster.
Many parts are interchangeable with other M.B. systems but when you get into 4+ piston calipers and floating rotors the cost starts to get on the silly side.
Only suggestion I might have is if your going to do the conversation, one might want to look into getting a set of slotted or cross-drilled rotors since the cost of some of the quality aftermarket units are not much more than the OEM ones. While it probably won't do much for overall braking performance, it adds a nice touch to the car...