{"product_id":"subaru-ej257-forged-piston-set-set-of-4-wrx-sti","title":"Subaru EJ257 Forged Piston Set (Set of 4) – WRX STI","description":"\u003ch2\u003eSubaru EJ257 Forged Piston Set\u003c\/h2\u003e\u003cp\u003eHigh-performance forged aluminium piston set for the Subaru EJ257 boxer engine. Built to handle increased boost pressures in modified WRX STI applications while maintaining OEM reliability in standard builds.\u003c\/p\u003e\u003ch3\u003eKit Contents\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e4x forged aluminium pistons\u003c\/li\u003e\n\u003cli\u003ePiston rings (compression + oil control)\u003c\/li\u003e\n\u003cli\u003ePiston pins and circlips\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eForged aluminium for superior strength\u003c\/li\u003e\n\u003cli\u003eFlat-top design for stock compression ratio\u003c\/li\u003e\n\u003cli\u003eCompatible with stock stroke and bore\u003c\/li\u003e\n\u003cli\u003eSuitable for up to 400+ bhp applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEngine: Subaru EJ257 (2.5L Turbocharged Boxer)\u003c\/li\u003e\n\u003cli\u003eBore: 99.5mm (standard)\u003c\/li\u003e\n\u003cli\u003eMaterial: Forged aluminium alloy\u003c\/li\u003e\n\u003cli\u003eCondition: New\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eCompatible with Subaru Impreza WRX STI (GD\/GR\/GV) 2004–2014 with EJ257 engine. \u003cstrong\u003eVerify bore size and build spec before ordering.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Prime Drive Parts","offers":[{"title":"Default Title","offer_id":43609552781360,"sku":"ENG-SUB-EJ257-PST-009","price":489.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/4979\/1024\/files\/image_0d438dd8-97f2-41b6-bf80-25e449d118d0.png?v=1789163909","url":"https:\/\/primedrivepart.com\/products\/subaru-ej257-forged-piston-set-set-of-4-wrx-sti","provider":"Prime Drive Parts","version":"1.0","type":"link"}