Wilwood 120-13289-Y Aero Series Forged Narrow Superlite 4-Piston Disc Brake Caliper

The Wilwood Aero Series disc brake caliper features stress-flow forged construction from premium grade aluminum alloy billet for exceptional strength and performance. This advanced forging process realigns the metal's internal grain structure to flow within the contour of the caliper body, eliminating stresses and interruptions that occur during traditional block billet machining.

Key Features:

• Stress-flow forged aluminum alloy construction for superior strength-to-weight ratio
• Enhanced internal grain structure provides optimal clamping efficiency
• Ultimate resistance to fatigue, stress, and distortion under extreme loads
• Four-piston design delivers balanced pad pressure and consistent stopping power
• Precision-machined mounting points ensure proper alignment and installation
• Lightweight forged body reduces unsprung weight for improved handling

Engineered for high-performance street and racing applications, this caliper delivers professional-grade braking performance with exceptional durability. The stress-flow forging process creates a caliper body that's significantly stronger than conventional cast or machined designs, making it ideal for demanding motorsports use where reliability is critical.