Manley Performance
Fits 1998+ Subaru WRX with EJ205 engine
Part #: 620010C-1
Overview
The Manley Platinum Series pistons are high-performance engine components designed for Subaru WRX enthusiasts and professional tuners seeking durability and enhanced power. Crafted from premium 2618 alloy forgings, these pistons are engineered to withstand the rigors of increased displacement and boost levels, making them ideal for custom builds and high-performance applications. Their proven cam and barrel skirt profiles ensure optimal stability and reduced friction, supporting reliable operation under demanding conditions. Whether you're upgrading for increased horsepower or building a robust daily driver, these pistons provide the strength and consistency needed for serious engine modifications.
Key Features
Built with high-quality 2618 alloy forgings for superior strength and thermal stability, these pistons feature a 79mm stroke with a 4mm increase and a 93mm bore with a 1mm oversize for increased displacement. The dish design with an 8.5:1 compression ratio helps optimize power output while maintaining good fuel efficiency. Tool steel wrist pins enhance durability and reduce wear, while moly skirt coatings on select part numbers minimize friction and improve longevity. The pistons are precision-machined to ensure a perfect fit and consistent performance, supporting your engine's response and reliability.
Construction & Design
These pistons are crafted from high-grade 2618 alloy, known for its excellent strength-to-weight ratio and thermal properties. The design incorporates proven cam and barrel skirt profiles to reduce piston slap and improve stability during high RPM operation. The moly skirt coatings provide a low-friction surface, helping to extend piston life and maintain optimal engine efficiency.
Performance & Response
Designed to support increased displacement and boost levels, these pistons help improve engine response and power delivery. Their robust construction ensures consistent performance under high-stress conditions, making them suitable for both daily driving and competitive tuning.
Installation & Fitment
These pistons are engineered specifically for Subaru WRX models with the EJ205 engine, from 1998 onward. Proper installation requires professional expertise to ensure correct clearances and compatibility with your engine build.
What’s Included
The package includes a set of forged pistons with rings, wrist pins, and necessary hardware for installation.
