Wilwood 140-14681-D Front Big Brake Hat Kit Drilled - FNSL6R 14.00

The Wilwood 140-14681-D FNSL6R Front Hat Kit is a high-performance big brake upgrade featuring a 14.00-inch drilled rotor and the renowned Forged Narrow Superlite 6R six-piston caliper. Engineered for demanding street and track applications, this kit delivers significantly increased braking capacity over stock systems while maintaining a clean, purposeful appearance behind the wheel.

Designed as an application-specific solution, the FNSL6R kit installs with simplified, straightforward fitment and is fully compatible with the OE master cylinder output and ABS systems where equipped — no master cylinder upgrades or proportioning valve modifications required.

Key Features:

• Forged Narrow Superlite 6R caliper — six-piston, high-rigidity forged body for consistent, fade-resistant clamping force
• 14.00" drilled rotor — cross-drilled design promotes heat dissipation and helps evacuate gas and debris from the pad surface
• Application-specific engineering for direct bolt-on installation
• OE master cylinder and ABS compatible — no supplemental hydraulic modifications needed
• Ideal for high-performance street driving, show cars, and track-day machines
• Available in multiple caliper finish options to complement custom wheel and suspension setups
• Part of Wilwood's broad FNSL6R 13"–14" big rotor kit platform

Wilwood Engineering has been designing and manufacturing high-performance brake systems since 1977. The FNSL6R platform reflects that expertise — combining forged caliper strength, precision rotor engineering, and application-matched brackets to deliver a brake upgrade that is as reliable as it is capable. Whether building a show car or a serious track machine, the 140-14681-D provides the stopping power to match performance and suspension upgrades.