Wilwood FNSL6R Front Big Brake Kit for Subaru WRX (2002–2021) & STI (2004–2021) – 13” Rotors – 6 Piston Calipers

Part Number 140-12874 Overview The Wilwood FNSL6R Front Big Brake Kit (140-12874) is engineered for Subaru WRX and STI platforms requiring a balanced combination of performance, control, and thermal capacity. Designed to handle increased power and aggressive driving conditions, this system delivers strong stopping force, improved heat management, and consistent pedal response. Featuring forged 6-piston calipers paired with 13-inch rotors, this front brake kit provides a significant upgrade over factory braking systems while maintaining excellent street and track usability. Performance Tier This is our mid-tier brake package, designed for enthusiasts seeking increased braking performance and consistency without stepping into a full motorsports-level system. Features FNSL6R forged 6-piston calipers for increased clamping force and even pad distribution 13.06-inch vented rotors for improved thermal capacity and braking leverage Enhanced braking performance and modulation under load Improved heat dissipation during repeated braking Lightweight, performance-focused construction Consistent pedal feel and response in demanding conditions Configuration Options Available in black or red…