Wilwood Front Hat Kit 13in Drilled 2003-05 Scion xA xB

Wilwood FSLI4 Front Hat Kit delivers a front brake upgrade with the FSL forged Superlite four-piston caliper and 13.00in drilled rotors, providing increased pad capacity for improved fade resistance and consistent stopping performance.

Designed from Wilwood’s competition-proven Superlite lineage, this hat-style kit pairs large pad area and oversized rotors to address the thermal and mechanical demands of spirited street use and track incidents of sustained braking. The forged Superlite four-piston caliper construction reflects Wilwood’s focus on lightweight strength and reliable clamping under repeated high-load cycles.

• Forged Superlite four-piston caliper — big pad capacity: provides a larger pad contact area for distributed friction and improved stopping consistency under heavy use.
• Oversized 13.00in drilled rotor — increased swept diameter: raises thermal mass to reduce temperature rise and extend effective braking duration during repeated stops.
• Drilled rotor surface — gas and debris evacuation: drilled holes aid in venting gases and help maintain pad-to-rotor contact in demanding conditions.
• Lug-mounted hat configuration — simplified installation interface: designed to integrate with hub/lug mounting for this specific application group.
• Competition-derived design — track-proven pedigree: component geometry and materials reflect development rooted in motorsports for predictable, repeatable performance.

This kit emphasizes functional performance and durability without compromising vehicle compatibility within its targeted applications. Wilwood engineering concentrates on component-level benefits — caliper force distribution, rotor thermal capacity, and reliable mounting — to deliver a measurable braking upgrade.