Manley Performance Platinum Series Subaru WRX/STI 99.55mm Bore Dish Piston Set – Part 632201CE-4

Description

Upgrade your Subaru WRX or STI engine with the Manley Performance Platinum Series piston set, designed for high-performance applications and exceptional durability. Crafted from premium 2618 alloy forgings, these pistons deliver superior strength and reliable performance under demanding conditions. The design features proven cam and barrel skirt profiles that optimize power output while minimizing stress on cylinder walls, making them ideal for both daily driving and track use. With moly skirt coatings on select part numbers, these pistons reduce friction and wear, extending engine longevity.
Manley’s piston set includes chrome moly wrist pins as standard, ensuring a robust connection between piston and connecting rod. For increased durability, select SKUs are available with upgraded wrist pins made from 9310 or Turbo Tuff/DLC alloys, providing enhanced resistance to wear and impact. The pistons are manufactured with strict adherence to precise ring lands and grooves, resulting in a better ring seal that boosts compression and overall engine efficiency.
Unique fixturing technology allows for skirt turning and ring groove machining in a single operation, ensuring perfect ring to skirt squareness and consistent quality. This advanced manufacturing process contributes to the pistons’ high precision and reliability, making them a favorite among professional engine builders and tuners seeking performance gains. Whether you’re building a high-horsepower street engine or a race-ready setup, these pistons offer the perfect balance of strength, performance, and durability. Please note, these pistons are not CARB approved, and acknowledgment of carb compliance is required before purchase. They are not suitable for air freight and are shipped via LTL freight.
Engine builders and performance enthusiasts choosing Manley’s Platinum Series pistons benefit from proven materials and innovative manufacturing techniques, ensuring their engine can handle increased power output while maintaining long-term reliability. Compatible with Subaru 2.0L and 2.5L turbocharged engines, these pistons are essential components for serious performance tuning and engine rebuilding projects.

Features:

• 2618 alloy forging for high strength and durability

• Proven cam and barrel skirt profiles for optimized power output

• Moly skirt coatings on select part numbers reduce friction

• Chrome moly wrist pins standard; upgrade options available for enhanced durability

• Precise ring lands and grooves for improved ring seal and compression

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

• Designed for Subaru WRX/STI engines with 99.55mm bore and +.05mm size

• Not CARB approved; carb acknowledgment required