Wilwood 120-11134-SI FSLI Superlite Forged Brake Caliper - 6-Piston

The Wilwood FSLI Superlite brake caliper represents the pinnacle of racing brake technology, combining stress-flow forged construction with advanced engineering for maximum strength and performance. This 6-piston caliper is designed for short track, late model, modified, and open wheel competition, while also excelling in road racing, off-road, rally, and high-performance street applications.

Stress-Flow Forged Construction:

Each caliper body is stress-flow forged from premium grade aluminum alloy billets, a process that re-aligns the metal's internal grain structure to flow within the contour of the caliper body. This eliminates the stresses and grain structure interruptions that occur with traditional billet machining, creating the strongest possible aluminum caliper body available.

Advanced FSL Body Design:

• Computer-generated solid modeling and stress analysis optimization
• Closed end bridges with radial transitions to piston housings
• Eliminates machined steps and sharp shoulders for increased strength
• Superior resistance to deflection under load
• Center bridge bolts replace cotter pins for quick pad access and positive retention
• 3.50" centered mounting tabs for direct Superlite compatibility

Premium Performance Features:

• Replaceable SRS stainless steel bridge plates eliminate pad gouging and extend caliper life
• Spring-loaded SRS plates eliminate pad rattle and dampen vibration for squeal-free braking
• High-temperature square-faced O-ring seals for positive sealing and controlled piston retraction
• Stainless steel pistons resist corrosion and retard heat transfer
• Two-piece bleed screw assemblies for reliable, long-lasting service
• Uses 7420 type bridge bolt brake pads compatible with all Superlite 6-piston calipers

Proven Results:

Extensive testing has proven the FSLI caliper's superior clamping force, minimal structural deflection, and efficient volume displacement. The result is improved stopping power with reduced pedal travel and exceptional driver confidence on track.

This caliper is a direct replacement for all Wilwood Superlite and similar competitive brand calipers with 3.50" centered mounting tabs. Available in multiple piston sizes (1.75", 1.62", 1.38", 1.25", and 1.12") for various rotor widths (.81", 1.10", and 1.25"). Compatible with the full range of Wilwood PolyMatrix pad compounds to match brake response and heat range to any application.