2012 AUDI A5 B9 upgraded with ATRT high performance big brake kits.
 
[Touring Specification] 
ATRT ZS-IV big 6-piston brake caliper + Ø355mm 2-pieces Cross-Drilled & Slotted Rotors.

[Feature]
#Forge Products (Material 6061-T6 from Taiwan)   
#CNC mrilling machine Proces                              
#Anodizing Aluminium Proces                               
#High strength & Lightweight                                   
#2 cooling vents patents designed by ATRT racing