Wilwood 140-16005 Forged Narrow Superlite 6R Front Road Race Disc Brake Kit

The Wilwood 140-16005 is a front big brake kit engineered specifically for dedicated road racing, featuring the Forged Narrow Superlite 6R (FNSL6R) six-piston radial-mount calipers and a 13.06" Lug-Drive dynamically mounted rotor. This kit is built for unrestricted competition where sustained high-heat braking performance and consistent pedal feel are critical.

FNSL6R Caliper Features:

• Forged aluminum caliper body with Type III Mil-Spec hard anodized medium gray finish for superior wear resistance and corrosion protection
• Thermlock® pistons reduce heat transfer from brake pads to caliper fluid and seals, increasing fade resistance and extending service life
• Internal damper springs and controlled-retraction, high-temperature piston seals deliver consistent pedal height throughout race stints
• Six-piston radial-mount design maximizes clamping force and reduces caliper deflection under extreme braking loads

Rotor and Hat Assembly:

• Spec37 alloy GT competition series rotors — 13.06" diameter with directional vane design for high-efficiency cooling and thermal stability
• Lug-Drive dynamic mounting allows the rotor to expand with heat independent of the hat, reducing thermal distortion and stress
• Forged aluminum hats minimize unsprung and rotating weight while maintaining structural rigidity under competition loads

Complete Kit Includes:

• FNSL6R six-piston radial-mount calipers (pair)
• 13.06" Spec37 alloy GT slotted directional vane rotors with forged aluminum hats
• Application-specific caliper mounting brackets
• High-temperature, high-friction endurance compound race brake pads
• Stainless steel braided brake flexlines
• All premium-grade fasteners and hardware

Calipers mount in the OE stock location using the included brackets — no chassis modifications required. This system is designed to work with the factory spindle and lug-drive hub interface, preserving OE geometry while delivering race-winning braking capacity.