This EBC Racing 12-20 Audi A3 (8V) 1.8T Blue Apollo-4 Calipers 330mm Rotors Front Big Brake Kit is a high-performance braking system designed to provide superior stopping power and improved handling for the Audi A3. The kit includes four blue Apollo-4 calipers that boast a 330mm rotor size, providing increased braking power and improved pedal feel. The kit also includes all necessary hardware and mounting brackets for a quick and easy installation. This brake kit is perfect for those looking for increased performance and improved handling from their Audi A3.