Wilwood 140-11270 W4A Rear Big Brake Kit 14.25 Inch Rotors

The Wilwood 140-11270 W4A Rear Big Brake Kit is a complete AERO4 rear axle brake upgrade designed to replace factory disc brakes on late model high-performance vehicles. This kit provides high-capacity braking performance while maintaining compatibility with your OE parking brake assembly and factory master cylinder output.

Key Features:

• W4AR four-piston radial mount calipers for superior clamping force and consistent brake modulation
• Oversized 14.25-inch diameter vented rotors for increased thermal capacity and fade resistance
• BP-10 compound brake pads deliver excellent bite and durability for high-performance applications
• Engineered to match OE master cylinder output and ABS function requirements
• Optimized brake bias for balanced rear braking performance
• Utilizes factory parking brake assembly for seamless integration
• Direct bolt-on installation replaces factory rear disc brake system

This rear brake upgrade is the ideal complement to front big brake kits on customized vehicles with increased brake demands from larger wheels, performance tires, and suspension modifications. The combination of larger rotors, high-performance calipers, and quality friction material provides enhanced stopping power, improved brake feel, and extended component life under demanding driving conditions.