I just saw these on ebay and thought someone might be interested.

http://www.ebay.com/itm/03-W215-MERCEDES-CL55-AMG-BREMBO-CALIPER-SET-OEM-/161039859757?pt=Motors_Car_Truck_Parts_Accessories&hash=item257eb9402d&vxp=mtr

 

Those are 8/4 piston, not 6/4.

 

oops, my bad

 

Are these direct bolt ons for the Xfire and SRT?

 

No, they are not bolt on and will require extensive work to fit them. BigKid did this mod and they required parts from 4 different cars, custom machining and the sway bar mounts to be cut off and welded back on out of the way to the caliper. That being said, I drove his car with the big brakes and it stops just shy of instantly regardless of speed and they look beastly.

 

I have the 8 pot brembo's front and 4 piston back. Was some work but not real bad to do. Rotors front are 360mm and 330mm rear .......it took longer to get the right rotors than fitting the 8 pot brakes.