Wilwood 140-16937-DR Forged Narrow Superlite 4R Front Big Brake Kit – Drilled & Slotted Rotors

The Wilwood 140-16937-DR is a Forged Narrow Superlite 4R Front Big Brake Kit featuring motorsports-proven engineering designed to deliver performance braking capability on par with the legendary 1974 RS and 930 Turbo. Built with lightweight components and modern USA manufacturing techniques, this disc brake conversion kit upgrades classic front struts using the latest Superlite four-piston radial mount caliper technology.

Key Features:

• Forged Narrow Superlite 4-Piston Caliper – Radial mount design refined through countless competition laps across multiple racing classes
• 12.19" (310mm) SRP Drilled & Slotted Rotors – E-coat finished iron alloy rotors with 32 cooling vanes for superior heat dissipation and fade resistance; -DR suffix designates drilled and slotted face
• BP-10 Smart Pads – High-fade-resistance brake compound offering positive pedal response and easy caliper cleanup
• Forged Aluminum Construction – Stress-flow forged aluminum calipers, mounting hats, and brackets outperform OE components while reducing unsprung weight
• Direct Bolt-On Fitment – Mounts directly to front struts with 3.00" (76.2mm) spaced mounting tabs; no permanent modifications required
• Minimum Wheel Diameter: 15 inches
• Caliper Mount Type: Radial | Spindle Type: Factory Disc
• Rotor Dimensions: 12.19" x 0.80" (310mm x 20.3mm)
• Braided Stainless Steel Flexlines – Included for a complete, competition-ready installation

This complete front brake kit is engineered to deliver a significant upgrade over stock braking hardware. The combination of oversized vented rotors, high-clamping four-piston calipers, and performance brake pads produces greater brake torque with substantially less fade — all while weighing less than OEM components. Braided stainless Flexlines are included for a clean, professional installation.