{"product_id":"manley-04-subaru-wrx-sti-ej257-std-stroke-99-5mm-std-bore-8-5-1-dish-piston-set-with-rings","title":"Manley STD Stroke 99.5mm Bore Dish Piston Set with Rings | Subaru WRX STi (04+) (612000C-4)","description":"\u003ch1\u003eManley Performance Pistons\u003c\/h1\u003e\n\u003ch2\u003eFits Subaru WRX STi EJ257 2004 and newer models\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart #:\u003c\/strong\u003e 612000C-4\u003c\/p\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\nThe Manley Platinum Series piston set is designed for high-performance Subaru WRX STi engines, specifically the EJ257 platform. Crafted with advanced materials and precision engineering, these pistons are ideal for enthusiasts, tuners, and professional engine builders seeking reliable durability and consistent performance. Whether you're building a stock replacement or a heavily modified powerplant, these pistons help support your engine’s response, heat management, and longevity, ensuring your vehicle maintains peak performance under demanding conditions.\n\u003ch3\u003eKey Features\u003c\/h3\u003e\nDesigned with 2618 alloy forgings for superior strength and thermal stability, these pistons feature proven cam and barrel skirt profiles for optimal fit and reduced friction. The moly skirt coatings on select part numbers enhance wear resistance, extending engine life. Equipped with tool steel wrist pins, these pistons deliver reliable connection and durability. The dish design with an 8.5:1 compression ratio provides a balance of power and efficiency, making them suitable for a variety of tuning applications. The standard 99.5mm bore and stroke ensure precise fitment for EJ257 engines, supporting high-performance builds with confidence.\n\u003ch3\u003eConstruction \u0026amp; Design\u003c\/h3\u003e\nThese pistons are manufactured from high-grade 2618 alloy forgings, known for their excellent strength-to-weight ratio and thermal properties. The moly skirt coatings reduce friction and wear, while the tool steel wrist pins provide added durability for high-stress operation. The design incorporates proven profiles that optimize piston stability and response during high RPM and boost conditions.\n\u003ch3\u003ePerformance \u0026amp; Response\u003c\/h3\u003e\nEngineered to support aggressive tuning and increased power output, these pistons help improve throttle response and engine efficiency. Their robust construction ensures consistent performance and durability, even under high stress, making them suitable for both daily driving and competitive applications.\n\u003ch3\u003eInstallation \u0026amp; Fitment\u003c\/h3\u003e\nDesigned for direct replacement in Subaru WRX STi EJ257 engines, these pistons require standard assembly procedures. Proper installation with compatible rings and hardware is recommended to ensure optimal performance and longevity.\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\nThe package includes a complete set of pistons with moly skirt coatings and tool steel wrist pins, ready for installation in your EJ257 engine.","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":51635931218207,"sku":"612000C-4","price":679.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0229\/3877\/files\/manley-performance-platinum-series-piston-set-9950mm-851-2002-2007-wrx-2004-2007-sti-612000c-4-381013.jpg?v=1779937756","url":"https:\/\/shop.wheelflip.com\/products\/manley-04-subaru-wrx-sti-ej257-std-stroke-99-5mm-std-bore-8-5-1-dish-piston-set-with-rings","provider":"WheelFlip","version":"1.0","type":"link"}