Manley Performance Subaru WRX/STI 99.5mm Bore Piston Set – Extreme Duty Platinum Series with 2618 Alloy Forgings

Description

The Manley Performance Subaru WRX/STI 99.5mm Bore Piston Set is designed for high-performance applications, offering durability and power for professional engine builders and tuners. Crafted from 2618 alloy forgings, these pistons provide superior strength and resilience under demanding conditions. The inclusion of proven cam and barrel skirt profiles ensures optimal power output while maintaining gentle contact with cylinder walls, enhancing engine longevity. The pistons feature moly skirt coatings on select part numbers, reducing friction and wear for extended service life. Chrome Moly wrist pins come standard, with options for upgraded alloys such as 9310 and Turbo Tuff/DLC, offering additional durability for high-stress environments. The precise ring lands and grooves adhere to strict manufacturing standards, resulting in better ring sealing and increased horsepower. Manley’s unique fixturing process allows for efficient skirt turning and ring groove machining in a single operation, ensuring perfect ring groove to skirt squareness for optimal performance. These pistons are engineered to meet the rigorous demands of turbocharged Subaru engines, making them ideal for enthusiasts seeking reliable, extreme-duty components for street and racing applications. They require acknowledgment of Prop 65 compliance and are not CARB approved, emphasizing their focus on performance rather than emissions standards. Built for easy installation and long-lasting performance, the Manley Platinum Series pistons deliver the power and durability that professional tuners demand.

Features:

• 2618 alloy forgings for superior strength and performance

• Proven cam and barrel skirt profiles for optimal power output

• Moly skirt coatings on select part numbers to reduce friction

• Chrome Moly wrist pins standard, with upgrade options to 9310 and Turbo Tuff/DLC alloys

• Exacting ring lands and grooves for enhanced sealing and increased horsepower

• Unique fixturing allows for skirt turning and ring groove machining in a single operation