Wilwood 140-14090-R Dynapro Rear Disc Brake Kit Street Performance - 4 Radial-MC4

The Wilwood 140-14090-R is a Dynapro 4 Radial-MC4 Rear Axle Disc Brake Kit engineered to replace factory rear disc brakes on late-model high-performance vehicles. Designed as a direct complement to front big brake upgrades, this kit integrates the MC4 mechanical parking brake assembly for a complete, fully functional rear braking solution.

At the heart of this kit are the Dynapro 4 Radial 4-piston calipers, paired with BP-10 performance compound brake pads and oversized 12.88" rotors. The entire system is engineered to work in harmony with the OE master cylinder output, maintain proper ABS function, and satisfy individual front-to-rear brake bias requirements — no hydraulic system modifications required.

Key Features:

• Dynapro 4 Radial 4-piston calipers in red powdercoat finish for high-capacity clamping force
• Oversized 12.88" rotors for improved thermal capacity and fade resistance over stock
• BP-10 compound brake pads optimized for street performance applications
• Integrated MC4 parking brake assembly — mechanically actuated, fully functional emergency/parking brake
• Compatible with OE master cylinder, ABS systems, and stock brake bias settings
• Bolt-on rear axle kit design for straightforward installation with common hand tools
• High-tech styling complements big wheel, lowered suspension, and custom vehicle builds

The Wilwood 140-14090-R rear brake kit delivers a significant upgrade in stopping performance, durability, and visual appeal. It is an ideal solution for modified street vehicles, custom builds, and any application with braking demands that exceed factory specifications.