{"product_id":"products-jdy-performance-s58-forged-pistons-bmw-g8x","title":"JDY Performance STG1 BMW G82\/G83 S58 3.0TG8X Pistons by Diamond","description":"\u003ch3\u003e\u003cstrong\u003eJDY Stage 1  Pistons for BMW S58 3.0T M2 M3 M4 G8X\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eJDY Stage 1 and Stage 2 Pistons\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eare high-performance upgrades designed specifically for the BMW S58 engine platform. These pistons are engineered to handle extreme power outputs while offering enhanced durability and efficiency for high-performance and racing applications. Available in stock bore size (84mm) with a 9.2:1 compression ratio, they deliver outstanding performance and reliability under the most demanding conditions.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePiston Design:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStock Bore Size\u003c\/strong\u003e: 84mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Ratio\u003c\/strong\u003e: 9.2:1.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Billet 2618 alloy for high strength and lightweight performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Options\u003c\/strong\u003e: Stage 2+pistons ( 1800+ HP).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWrist Pins\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: H13 super hard alloy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions\u003c\/strong\u003e: 23mm diameter, 0.225-inch pin wall thickness.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePiston Rings\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e equipped with\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTotal Seal piston rings\u003c\/strong\u003e, which are thicker than OEM rings for better sealing, improved oil control, and enhanced resistance to higher combustion pressures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGroove Re-Design\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe piston ring grooves have been re-engineered for better heat management and durability, minimizing the risk of ring flutter and improving overall performance. Optimized groove depth ensures reliable sealing while accounting for thermal expansion under high-stress conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eValve Pocket Design\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCustom valve pocket grooves are designed to accommodate\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eKelford stage 1, 2, and 3 camshafts\u003c\/strong\u003e, allowing for better volumetric efficiency and greater valve lift without interference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003e\n\u003cstrong\u003eStage 1 Pistons\u003c\/strong\u003e:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface Finish\u003c\/strong\u003e: Standard Billet 2618 finish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal for builds up to 1500+ horsepower\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eDurable and cost-effective solution for moderate high-performance applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\n\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinished Bore Size\u003c\/strong\u003e: 3.307 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Ratio\u003c\/strong\u003e: 9.2:1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWrist Pin Diameter\u003c\/strong\u003e: 0.905 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWrist Pin Length\u003c\/strong\u003e: 2.250 inches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese pistons are engineered for compatibility with\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eKelford stage 3 camshafts\u003c\/strong\u003e, which allow for more valve lift, requiring deeper valve pockets that JDY has specifically designed.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Choose JDY Pistons?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eJDY’s Stage 1 piston kits are meticulously crafted for enthusiasts and professionals aiming to push the limits of their BMW S58 engines. JDY’s pistons provide the durability, power, and performance needed for success on the street or track.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Information\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp\u003eIt is the customer’s responsibility to ensure compatibility with their specific vehicle prior to purchase. If you are unsure, please contact us before ordering.\u003c\/p\u003e\n\u003cp\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp\u003eDue to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eImportant Information:\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp\u003eIt is the customer’s responsibility to ensure compatibility with their specific vehicle prior to purchase. If you are unsure, please contact us before ordering.\u003c\/p\u003e\n\u003cp\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp\u003eDue to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.\u003c\/p\u003e","brand":"JDY Performance","offers":[{"title":"Default Title","offer_id":45663957057734,"sku":"JDY-DIAP-S58-ST1","price":3800.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/13_720x_d2b9d7f1-24ce-4c94-96c4-c4ceb411396b.webp?v=1774914963","url":"https:\/\/www.gridlinecustommotorsports.com.au\/products\/products-jdy-performance-s58-forged-pistons-bmw-g8x","provider":"Gridline Custom Motorsports","version":"1.0","type":"link"}