Signature Werks G8X Rear 17" Brake Conversion Kit Caliper Color:Blue Our core was engineered to

Our core was engineered to offer a greater overall surface area for increased heat absorption as well as dissipation

Each cap set comes with a Billet Oil Cap and Coolant Tank Cap Cover

Fitment: 2021+ G80 M3 G82/G83 M4

Assured spot-on fitment for a smooth installation process

Signature Werks G8X Rear 17" Brake Conversion Kit Caliper Color:Blue Our core was engineered toFactory G8X M2 M3 M4 rear brakes can only allow down to 18" diameter wheels. This makes it harder to allow larger sidewall tires. With the help of Signature Werks, we've developed a perfect option. We do not want to sacrifice the performance of the braking capabilities. So, we've integrated ZL1 calipers to the rear brake with new rotors as well as a dedicated electronic parking brake. Everything functions like OEM. There is no programming needed. Once