{"product_id":"wiseco-subaru-ej257-wrx-sti-4v-dish-piston-set-99-50mm-bore-forged-performance","title":"Wiseco Subaru EJ257 WRX\/STI 4V Dish Piston Set – 99.50mm Bore, Forged Performance","description":"Professional Series forged racing pistons from Wiseco are no-expense-spared pistons designed for the serious racers and builders. Packed full of custom-level performance and durability features and provided with premium rings, Professional Series pistons are designed and built for use in heavy to severe duty race builds. Remove your limits with Wiseco?s Professional Series.\nWiseco Subaru EJ257 Piston Set, 99.50 mm Bore, 30.70 mm Compression Height, 0.9055 in. Pin Diameter, Sport Compact, Set of 4.\n\u003cul\u003e\n  \u003cli\u003eEngineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength\u003c\/li\u003e\n  \u003cli\u003ePrecision ring grooves, anti-detonation groove, and additional ring seal improving features\u003c\/li\u003e\n  \u003cli\u003eArmorGlide  Skirt Coating: seizure resistant, friction reduction, and quieter operation\u003c\/li\u003e\n  \u003cli\u003eDesigned and built to withstand heavy to severe duty performance applications\u003c\/li\u003e\n  \u003cli\u003eFully machined crown features\u003c\/li\u003e\n  \u003cli\u003eForced pin oiling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Wiseco K598M995AP Professional Series forged racing pistons are engineered for high-performance Subaru EJ257 engines, delivering exceptional strength and durability for serious racing applications. Crafted from 2618 aluminum in the USA, these pistons feature precision machined crowns and custom design elements that optimize power and reliability. The fully machined crown and forced pin oiling ensure consistent performance under heavy-duty conditions, making them ideal for severe performance builds. The pistons include premium rings and incorporate features like anti-detonation grooves and enhanced ring seal technology to maximize combustion efficiency and reduce harmful knocking.\u003cbr\u003eWiseco's ArmorGlide skirt coating reduces friction, minimizes seizure risk, and promotes quieter operation, extending piston life in aggressive driving scenarios. These pistons are built to withstand the rigors of high-stress environments, ensuring longevity and sustained performance. Designed specifically for Subaru EJ257 engines with a 99.50mm bore and 30.70mm compression height, this set of four pistons provides a complete upgrade for your sport compact build. The pistons are fully compatible with racing setups, offering the reliability and high-performance features necessary for competitive motorsports.\u003cbr\u003ePlease note that these pistons are not carb-approved and require acknowledgment of this specification during installation. Designed for professional racing and heavy-duty applications, they are an excellent choice for enthusiasts seeking maximum performance and durability from their Subaru EJ257 engine. Trust Wiseco's expertise and precision engineering to remove limits and elevate your racing experience.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eEngineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePrecision ring grooves, anti-detonation groove, and additional ring seal improving features\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eArmorGlide skirt coating: seizure resistant, friction reduction, and quieter operation\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned and built to withstand heavy to severe duty performance applications\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFully machined crown features\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eForced pin oiling for consistent lubrication and durability\u003c\/li\u003e\u003c\/ul\u003e\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbdoy\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: true\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: true\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Y\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: t\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbdoy\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"Wiseco","offers":[{"title":"Default Title","offer_id":53602409513233,"sku":"K598M995AP","price":873.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/3830\/0689\/files\/26897212e1cbf55991ce83d79e5f4fc1.jpg?v=1779940517","url":"https:\/\/shoprenegade.com\/products\/wiseco-subaru-ej257-wrx-sti-4v-dish-piston-set-99-50mm-bore-forged-performance","provider":"Renegade Speed by Renegade Racing \u0026 Performance","version":"1.0","type":"link"}