Wilwood 140-17101-DY Forged Narrow Superlite 4R Rear Disc Brake Kit

The Wilwood 140-17101-DY is a complete rear disc brake kit engineered for custom high-performance import vehicles. This kit pairs Forged Narrow Superlite 4R (FNSL4R) four-piston calipers with BP-10 compound brake pads and 12.98" rotors, delivering serious stopping power in a compact, lightweight package.

Designed with the performance builder in mind, this rear kit retains full use of the OE parking brake, factory master cylinder output, and ABS compatibility where equipped — making integration into existing vehicle systems straightforward.

Key Features:

• Forged Narrow Superlite 4R (FNSL4R) four-piston calipers for superior clamping force
• BP-10 high-performance brake compound pads included
• 12.98" rotors sized to complement front big brake upgrades
• Retains OE parking brake functionality
• Compatible with factory master cylinder output
• ABS compatible where applicable
• Available in optional caliper finishes for custom styling
• Multiple rotor designs available to match style and performance goals
• Designed to pair with 12.98" and larger Wilwood front brake upgrades

The FNSL4R rear brake kit is purpose-built to deliver complementary style and performance alongside front big brake upgrades, working in concert with wheel, tire, and suspension modifications common on high-performance import builds. Multiple optional caliper finishes and rotor designs allow builders to tailor both the look and performance characteristics to their specific application.