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Manley Performance Single Forged Piston for Subaru WRX STi (EJ257)

This Manley Performance forged piston is designed for the 2004+ Subaru WRX STi (EJ257) engine. Featuring a 99.50mm Grade A standard bore size and a 79mm stroke specification, this single piston is an ideal replacement for a damaged or worn piston, ensuring your engine's performance is restored.

Key Features and Benefits:

• 2618 Alloy Forgings: Made from high-strength domestic 2618 alloy, providing superior durability and resistance to extreme engine conditions.
• Chrome Moly Wrist Pin: Includes a standard Chrome Moly wrist pin for reliable operation. Optional upgrades are available for enhanced strength.
• Precision Ring Lands: Engineered with exact ring lands and grooves to ensure a proper seal, contributing to optimal compression and power output.
• Optimized Piston Design: Features cam and barrel profiles designed to generate power efficiently while minimizing wear on cylinder walls.
• Unique Manley Fixturing: Manufactured using Manley's specialized fixturing process, guaranteeing the squareness of the ring grooves to the piston skirt for balanced performance.

This single piston comes complete with rings, making it a convenient solution for engine repairs or rebuilds. Whether you're addressing a specific issue or performing routine maintenance on your high-performance Subaru, choosing Manley Performance ensures you're using top-tier components. Restore your WRX STi's engine with the quality and precision of Manley Performance parts, available at GGCRACING.