BMW M4 GT4 Brake Cooling Kit
Genuine BMW M4 GT4 Race Brake Duct Plates - Carbon
Genuine BMW Motorsport parts.
The cooling plates attach to the back of the brake rotors with 2 hose connection points. 1 Hose (51mm diameter) from the carbon duct that fixes to the front bumper and the other hose (76mm diameter) from the duct intergrated into the front splitter.
Options to add RKP front bumper air ducts in the drop down menu.
These are the ones that fix to the front bumper.
Alternatively you can buy the Genuine BMW Motorsport ducts which are available seperately in the store if you prefer to have yhr Original BMW Motorsport ones.