SMOOTH car brake discs are a high-quality replacement for serial brake discs, the durability and braking performance of which is much better than that of serial discs. The discs are manufactured in Great Britain and Germany (currently production has been extended to other countries such as Japan and Italy). Specially developed technology and selection of components allow for trouble-free and long use of the discs. Their durability makes them compatible with all EBC Brakes bricks, including RED STUFF (red), YELLOW (yellow) and BLUE (blue) bricks. TECHNICAL DATA Type: Drilled Full / Ventilated: Ventilated Number of holes: 5 Diameter (mm): 320 Height (mm): 58 Thickness (mm): 24 Minimum thickness (mm): 22 Axle application: Rear APPLICATION Brand Model Engine Value Power (KM) Yearbook MERCEDES-BENZ SL-CLASS (R230) SL350 2003-2008 MERCEDES-BENZ SL-CLASS (R230) SL280 2008-2009 MERCEDES-BENZ SL-CLASS (R230) SL280 2008-2009 MERCEDES-BENZ SL-CLASS ( R230) SL500 2008-2012 MERCEDES-BENZ SL-CLASS (R230) SL350 2008-2012 MERCEDES-BENZ SL-CLASS (R230) SL350 2008-2012 MERCEDES-BENZ SL-CLASS (R230) SL300 2009-2012 MERCEDES-BENZ SL- CLASS (R230) SL300 2009-2012