KIA Optima original factory brake system upgraded with ATRT high performance big brake kits.

[Touring info]
ATRT ZS-IV big 4POT brake caliper + Ø330mm 2-pieces cross-drilled and slotted brake rotors in the front.

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