Manley Performance Subaru WRX/STI 100mm Bore +0.50mm Dish Piston Set (Part No. 632205C-4)

Description

The Manley Performance Subaru WRX/STI 100mm Bore +0.50mm Dish Piston Set is engineered for high-performance applications, offering durability and power for professional engine builders and tuners. Crafted from 2618 alloy forgings, these pistons deliver superior strength and resilience under demanding conditions. The proven cam and barrel skirt profiles optimize power output while minimizing wear on cylinder walls, ensuring long-lasting performance. Equipped with chrome moly wrist pins as standard, select models feature upgraded alloys like 9310 and Turbo Tuff/DLC for enhanced durability and reduced friction. The precision-machined ring lands and grooves adhere to strict standards, promoting superior ring seal and improved combustion efficiency. Manley’s innovative fixturing process allows for skirt turning and ring groove machining in a single operation, guaranteeing precise ring groove to skirt squareness for optimal performance and reliability. Whether you’re building a custom turbocharged setup or enhancing your existing engine, this piston set provides the strength and design features needed for high-performance driving. Designed with a dish configuration and a compression ratio of 8.5:1, it balances power and efficiency, making it suitable for a wide range of tuning projects. The set is not CARB-approved, and acknowledgment of this is required for compliance purposes. Suitable for automotive applications, these pistons are a trusted choice among professional tuners seeking durability, performance, and consistent quality. The part is compatible with Subaru WRX/STI models from 2004 and newer, ensuring a perfect fit into your build or rebuild project for reliable performance and peace of mind.

Features:

• 2618 alloy forgings for superior strength and durability

• Chrome moly wrist pins included as standard, with optional high-performance alloy upgrades

• Exacting ring lands and grooves for enhanced sealing and power output

• Proven cam and barrel skirt profiles optimized for power and cylinder wall protection

• Unique fixturing process for precise ring groove to skirt alignment, ensuring quality