Wilwood 140-16947-Y Front Forged Narrow Superlite Disc Brake Kit with Yellow Calipers - 4-Piston

The Wilwood 140-16947-Y is a complete front big brake upgrade kit featuring the motorsports-proven Forged Narrow Superlite 4-piston radial-mount caliper paired with an oversize 12.19" (310mm) GT slotted rotor. Engineered specifically for 1969–1989 Porsche 911s, this kit delivers braking performance on par with the legendary 1974 RS and 930 Turbo using modern USA-manufactured, lightweight components.

The Superlite caliper at the heart of this kit has been validated through countless competition laps across multiple racing classes. Combined with high-performance pads and precision-machined rotors, this kit provides the stopping power and thermal endurance demanded by both track day enthusiasts and serious racers.

Kit Contents:

• Forged Narrow Superlite 4-piston radial-mount calipers in yellow powder coat finish
• 12.19" (310mm) diameter GT slotted or SRP series drilled and slotted e-coat rotors
• BP-10 compound Smart Pads — high fade resistance, positive response, and easy-to-clean surface
• Forged aluminum caliper mounting bracket — lighter than OE cast iron
• Forged aluminum rotor mounting hats
• Braided stainless steel Flexlines

Key Features:

• Bolts directly to front struts with 3.50" (88.9mm) spaced mounting tabs — no modifications required
• Forged aluminum calipers, hats, and bracket reduce unsprung weight versus stock components
• BP-10 Smart Pads deliver high fade resistance and consistent pedal response
• GT slotted rotor design improves heat dissipation and pad bite
• E-coat rotor finish provides corrosion protection
• Designed and manufactured in the USA using modern engineering techniques

This Wilwood front brake kit is the definitive bolt-on performance upgrade for classic Porsche 911 owners seeking race-proven stopping power without custom fabrication.