BMW M3 Brake Kit - Rear - Alcon - 4 Piston Calipers + 380x32mm Rotors - Grey - ’15–’27. A purpose-built rear upgrade that brings Alcon’s proven performance to your M3 with confident, repeatable stopping.

This kit combines grey RC4 4-piston calipers with 380x32mm 2-piece rotors and high-friction pads to boost stopping power and heat capacity. Staggered steel pistons help distribute clamping force for even pad wear, while stainless steel pistons reduce heat transfer for consistent performance under repeated braking. Pin-mounted pads make swaps quicker and easier. It’s a robust solution for enthusiasts who want precise modulation and dependable durability.

Features

• High-friction pads increase stopping power
• Steel staggered pistons for even pad wear
• Stainless steel pistons resist thermal conductivity
• Pin-mounted pads for quicker, easier pad changes
• Grey RC4 4-piston rear calipers
• 380x32mm 2-piece rear rotors
• Rear axle kit for ’15–’27 BMW M3

Have questions or want help confirming fitment? Call us—our team is ready to assist, and we offer installation and customization at our Austin, Texas and Los Angeles, California area locations: 512-982-9393 (TX), 562-981-6800 (CA).

Thinking about purchasing multiple items? Contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov