BMW F02 740Li factory brake system upgraded with ATRT high performance big braking system.

[Touring Specification] 
Front : ATRT forged Big 8-piston brake caliper + Ø405mm floating brake disc.
Rear : ATRT forged Big 6-piston brake caliper + Ø380mm rear drum 3pcs brake disc.

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