Manley 04+ Subaru WRX/STI EH257 99.50mm Bore STD Size 8.5:1 Dish Extreme Duty Piston Set

Browse all our engine parts and engine components at Black Ops Auto Works, including oil catch cans, pulleys, thermostats, radiator components, coolant accessories, engine covers, fuse box covers, cap covers, throttle bodies, cooling upgrades, and engine bay dress-up parts for trucks, SUVs, muscle cars, and performance vehicles. Whether you are maintaining a street build, upgrading a high-horsepower setup, or improving under-hood styling, this collection is built for customers searching for engine parts, engine bay accessories, cooling upgrades, catch cans, and performance engine components. Shop Top Engine Brands Find trusted brands across the engine category, including: Billet Technology Mishimoto ZPE GripTec MightyMouse Solutions Cordes Performance Granatelli Cometic BBK Corsa   These brands are popular for oil catch cans, thermostat housings, engine bay accessories, radiator and coolant upgrades, supercharger pulleys, throttle bodies, and performance engine hardware. Engine Pa...

Founded in 1966 by Hank Manley, Manley Performance Products has become one of the most respected names in high-performance engine components. Originally launched as Manley Speed Equipment, the company quickly earned a reputation for precision manufacturing, durability, and race-proven performance. From grassroots beginnings in New Jersey to global recognition in professional motorsports, Manley Performance continues to set the standard in high-performance automotive parts. Manley Performance Engine Parts Manley is known for manufacturing premium internal engine components designed for street, strip, and professional racing applications. Their product line includes: Manley stainless steel valves Manley forged pistons Manley connecting rods (H-Beam, I-Beam, Turbo Tuff, Pro Series) Manley camshafts Manley crankshafts Manley valvetrain components Valve springs, retainers, and hardware Every Manley component is engineered with strict quality control and race-driven innov...

Welcome to our exclusive collection of Piston Sets - Forged - 4cyl. These piston sets are engineered for performance enthusiasts looking to enhance their vehicle's power and efficiency. With a focus on quality and durability, our forged piston sets are the perfect upgrade for your 4-cylinder engine.   Key Features High Strength: Designed to withstand the extreme conditions of high-performance engines. Precision Engineering: Each piston is crafted to ensure optimal fit and function. Enhanced Performance: Improves combustion efficiency, leading to better power output. Lightweight Design: Reduces overall engine weight for improved acceleration and handling.   Why Choose Our Forged Piston Sets? Our Piston Sets - Forged - 4cyl collection is the result of extensive research and development. Here’s why you should choose our products: Manufactured using premium materials for longevity and performance. Tested rigorously to meet the highest industry standards. Suitable for both st...

Welcome to our Pistons collection, where quality meets performance. Whether you're a professional mechanic or a DIY enthusiast, our curated selection of pistons is designed to enhance your engine's efficiency and reliability of your engines performance.   Why Choose Our Pistons? High-Quality Materials: Our pistons are crafted from top-notch materials to ensure durability and longevity from various manufactues. Enhanced Performance: Designed to optimize your engine's performance, our pistons deliver power and efficiency for all makes and models. Wide Range: Choose from a variety of sizes and specifications to meet your specific needs from daily drivers torace cars. Competitive Pricing: Enjoy premium quality without breaking the bank.   Shop Our Pistons Collection Browse through our extensive range of pistons below: High-Performance Racing Pistons Standard Replacement Pistons Lightweight Forged Pistons Custom Fit Pistons Experience unmatched performance with our Pistons...