{"product_id":"930285037-mahle-powerpak-100mm-bore-piston-and-ring-kit-subaru-wrx-sti-ej25-2004-2021","title":"Mahle PowerPak 100mm Bore Piston and Ring Kit Subaru WRX \/ STI EJ25 2004-2021","description":"Part #: 930285037\u003cbr\u003e \u003cbr\u003e\u003cp\u003eMahle's PowerPak piston assemblies include forged pistons, piston rings, pins, and wire locks--all in one race-proven package. The pistons are hand-deburred and then coated with dry phosphate to protect against ring micro-welding and pin galling during initial startup. For additional performance, Mahle added its proprietary Grafal anti-friction coating to the piston skirts. Low drag rings, steel pins, and round wire locks complete the Mahle PowerPak package. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBore (in):3.937 in.\u003c\/li\u003e\n\u003cli\u003eBore (mm):100.000mm\u003c\/li\u003e\n\u003cli\u003ePiston Style:Dish, with four valve reliefs\u003c\/li\u003e\n\u003cli\u003ePiston Material:Forged aluminum\u003c\/li\u003e\n\u003cli\u003eCompression Distance (in):1.209 in.\u003c\/li\u003e\n\u003cli\u003ePiston Head Volume (cc):+22.00cc\u003c\/li\u003e\n\u003cli\u003eWrist Pin Style:Press-fit or floating\u003c\/li\u003e\n\u003cli\u003ePin Diameter (in):0.906 in.\u003c\/li\u003e\n\u003cli\u003eGapless:No\u003c\/li\u003e\n\u003cli\u003eFile Fit:No\u003c\/li\u003e\n\u003cli\u003eTop Ring Thickness:1.2mm\u003c\/li\u003e\n\u003cli\u003eTop Ring Material:Steel\u003c\/li\u003e\n\u003cli\u003eTop Ring Facing Material:Gas nitrided\u003c\/li\u003e\n\u003cli\u003eSecond Ring Thickness:1.5mm\u003c\/li\u003e\n\u003cli\u003eSecond Ring Material:Cast iron\u003c\/li\u003e\n\u003cli\u003eSecond Ring Facing Material:Cast iron\u003c\/li\u003e\n\u003cli\u003eOil Ring Thickness:2.8mm\u003c\/li\u003e\n\u003cli\u003eOil Ring Material:Chrome plated carbon steel\u003c\/li\u003e\n\u003cli\u003eOil Ring Tension:Standard\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Mahle","offers":[{"title":"Default Title","offer_id":44892894227,"sku":"mhl930285037","price":638.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/products\/Mahle-PowerPak-100mm-Bore-Piston-and-Ring-Kit-Subaru-WRX-STI-EJ25-2004-2021.jpg?v=1744197750","url":"https:\/\/www.importimageracing.com\/products\/930285037-mahle-powerpak-100mm-bore-piston-and-ring-kit-subaru-wrx-sti-ej25-2004-2021","provider":"Import Image Racing","version":"1.0","type":"link"}