{"title":"JDY Custom Diamond Pistons","description":"","products":[{"product_id":"jdy-spec-diamond-forged-pistons-audi-2-5-tfsi-rs3-tt-rs-10-0-1-82-50mm-h13-23mm-pin","title":"JDY Spec Diamond Forged Pistons Audi 2.5 TFSI RS3 \/ TTRS 10.0:1 82.50mm (H13 22mm Pin)","description":"\u003ch1 class=\"Polaris-Header-Title_2qj8j\"\u003e\n\u003cspan\u003eJDY Spec Diamond\u003c\/span\u003e\u003cspan\u003e?\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eAudi 2.5L TFSI TT-RS pistons are made by Diamond Racing USA. They are built as tough as can be to withstand the vigorous demands of racing. No matter how much boost pressure you are running or how high you are revving, these pistons will take it and ask for more! Check the individual features for your application below.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSPEC\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBore:82.5MM\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePIN:22mm\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCOMP H:1.165\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eWEIGHT:298\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eskirt coating?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCrown ceramic coating\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cu\u003eProduct Features and Design\u003c\/u\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2618 Low-silicon \/ High expansion alloy for High HP\/Boost applications\u003c\/li\u003e\n\u003cli\u003eRound skirt design with bottom reinforcing band\u003c\/li\u003e\n\u003cli\u003e3D under crown milling to ensure minimal weight without compromising strength.\u003c\/li\u003e\n\u003cli\u003e3D milling on piston crowns for ready to install finish\u003c\/li\u003e\n\u003cli\u003eOver size valve pockets for larger than stock valves and clip cuts on the edge of the pistons\u003c\/li\u003e\n\u003cli\u003eWindow milling, reduce piston overall weight while maintaining its strength and structural integrity\u003c\/li\u003e\n\u003cli\u003eLateral gas ports for better ring seal\u003c\/li\u003e\n\u003cli\u003eOffset pins for quiet operation\u003c\/li\u003e\n\u003cli\u003eMolly Skirt coating for friction minimization and skirt wear protection\u003c\/li\u003e\n\u003cli\u003ePremium 8620 series pins from 1018 mild steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e?Tool steel H-13 alloy wrist pins .Part number H8662250225C Extra wall thick. 5.72mm.\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003e\u003cu\u003eDiamond Pistons\u003c\/u\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eDiamond pistons are engineered with only one thing in mind: Winning races! They are manufactured in the USA from 2618 material. Diamond racing company is known from the late 60s to produce the highest quality engine parts around. The past 2 decades Diamond has solely dedicated itself to manufacturing forged pistons. With all state of the art machinery they offer customers the state of the industry in machining. The Coordinate Measuring Machine (CMM) is one of several sophisticated pieces of measuring and modeling apparatus used in Diamond¡¯s engineering department. The CMM provides very accurate measurements, measuring the location and details of valve pockets, for example, to within a .0001in. This laser scanner is used for modeling purposes, especially for scanning piston domes where it scans thousands of surface points in minutes. Developing the highest quality pistons in the industry by using the latest CNC machinery and computer software aids, as well as providing unmatched quality control. With these credentials it was only a matter of time before we decide that this is the firm to work with for making unlimited horsepower!\u003c\/p\u003e\n\u003cp\u003e- Total seal piston rings included?\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003eLowered Piston rings \u003c\/strong\u003e.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eReduces Heat Transfer to the Rings\u003c\/li\u003e\n\u003cli\u003e?Minimizes Ring Flutter at High RPM\u003c\/li\u003e\n\u003cli\u003e?Improves Detonation Resistance\u003c\/li\u003e\n\u003cli\u003e?Stronger Piston Crown\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"JDY Performance","offers":[{"title":"Default Title","offer_id":45466734067872,"sku":"DAZ-105-210-PA","price":1675.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/7060\/7520\/files\/ce9bd657-b41d-4bc1-8c34-479efa0ae8b4.jpg?v=1752775990"},{"product_id":"jdy-performance-s58-engine-pistons-by-dimoand-1800hp","title":"JDY Performance STG1 BMW S58 3.0TG8X Pistons by Diamond","description":"\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/7060\/7520\/files\/1jie.jpg?v=1734582821\"\u003e\u003c\/p\u003e","brand":"JDY Performance","offers":[{"title":"Default Title","offer_id":51667671482528,"sku":"S58-105-JDY-PA","price":2150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/7060\/7520\/files\/13_cc6938b4-2e91-475e-afdf-8c33f9517379.jpg?v=1727333621"},{"product_id":"jdy-performance-stg2-bmw-s58-3-0tg8x-pistons-by-dimoand","title":"JDY Performance STG2 BMW S58 3.0TG8X Pistons by Diamond","description":"\u003ch3\u003e\u003cstrong\u003eJDY Stage 2 Pistons for BMW S58 G8X M2\/3\/4 Platform\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eJDY Stage 2 Pistons\u003c\/strong\u003e are 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 1 pistons (up to 1500 HP) and Stage 2 pistons (up to 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\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Stage 2 pistons come with DLC (Diamond-Like Carbon) coating for reduced friction, enhanced wear resistance, and better performance under high temperature.\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 \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 \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 2 Pistons\u003c\/strong\u003e:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHard Anodizing\u003c\/strong\u003e: Provides a durable oxide layer for increased hardness, wear resistance, and corrosion protection. It also improves heat resistance and lowers friction between the piston and the cylinder wall.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDLC Coated Wrist Pins\u003c\/strong\u003e: DLC coating ensures extremely low friction and enhanced durability, even in high-temperature environments, while reducing wear on the connecting rods.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance Rating\u003c\/strong\u003e: Supports builds 1800+ horsepower, ideal for high-performance and racing 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\u003cstrong\u003e\u003c\/strong\u003e\n\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 \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 2 piston kits are meticulously crafted for enthusiasts and professionals aiming to push the limits of their BMW S58 3.0T engines. ?JDY¡¯s pistons provide the durability, power, and performance needed for success on the street or track.\u003c\/p\u003e","brand":"JDY Performance","offers":[{"title":"Default Title","offer_id":51668492288160,"sku":"S58-105-ST2-PA","price":2650.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/7060\/7520\/files\/14_a12a14aa-ce36-4a57-a2bc-1a41e3d680f8.jpg?v=1727354444"},{"product_id":"jdy-drag-spec-pistons-for-audi-rs3-ttrs-rsq3-daz-dnw-platform","title":"JDY Drag Spec Pistons for Audi RS3\/ TTRS\/ RSQ3, DAZA\/DNWA Platform","description":"\u003cp class=\"Polaris-Header-Title_2qj8j\"\u003e\u003cspan\u003eThese are high-performance upgrades designed specifically for the high boost (55psi +) \u0026amp; NOS Application. 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 (82.5mm) with a 9.5:1 compression ratio, they deliver outstanding performance and reliability under the most demanding conditions.\u003cbr\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"Polaris-Header-Title_2qj8j\"\u003e\u003cspan\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePiston Design:\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eStock Bore Size\u003c\/b\u003e: 82.5mm.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eCompression Ratio\u003c\/b\u003e: 9.5:1.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMaterial\u003c\/b\u003e: Billet 2618 alloy for high strength and lightweight performance.\u003cspan\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eWrist Pins\u003c\/b\u003e:\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMaterial\u003c\/b\u003e: H13 super hard alloy.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDimensions\u003c\/b\u003e: 23mm diameter, 0.225-inch pin wall thickness.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eCoating\u003c\/b\u003e: DLC (Diamond-Like Carbon) coating for reduced friction, enhanced wear resistance, and better performance under high temperature.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePiston Rings\u003c\/b\u003e:\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEquipped with?\u003cb\u003eTotal Seal piston rings\u003c\/b\u003e, which are thicker than OEM rings for better sealing, improved oil control, and enhanced resistance to higher combustion pressures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eGroove Re-Design\u003c\/b\u003e:\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe piston ring grooves have been re-engineered for better heat management and durability, minimising the risk of ring flutter and improving overall performance. Optimised groove depth ensures reliable sealing while accounting for thermal expansion under high-stress conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eValve Pocket Design\u003c\/b\u003e:\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCustom valve pocket grooves are designed to accommodate?\u003cb\u003eKelford Cam-A \u0026amp; Cam B camshafts\u003c\/b\u003e, allowing for better volumetric efficiency and greater valve lift without interference.\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eHard Anodizing\u003c\/b\u003e: Provides a durable oxide layer for increased hardness, wear resistance, and corrosion protection. It also improves heat resistance and lowers friction between the piston and the cylinder wall.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDLC Coated Wrist Pins\u003c\/b\u003e: DLC coating ensures extremely low friction and enhanced durability, even in high-temperature environments, while reducing wear on the connecting rods.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePerformance Rating\u003c\/b\u003e: Supports builds 1400+ horsepower, ideal for high-performance and racing applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"Polaris-Header-Title_2qj8j\"\u003e\u003cspan\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e:\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFinished Bore Size\u003c\/b\u003e: 82.5mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eCompression Ratio\u003c\/b\u003e: 9.5:1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eWrist Pin Diameter\u003c\/b\u003e:\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eWrist Pin Length\u003c\/b\u003e:\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"Polaris-Header-Title_2qj8j\"\u003e\u003cspan\u003eThese pistons are engineered for compatibility with?\u003cb\u003eKelford Cam-A \u0026amp; Cam B camshafts\u003c\/b\u003e, which allow for more valve lift, requiring deeper valve pockets that JDY has specifically designed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"Polaris-Header-Title_2qj8j\"\u003e\u003cspan\u003e\u003cbr\u003e\u003cb\u003eWhy Choose JDY Pistons?\u003c\/b\u003e\u003cbr\u003eJDY¡¯s Drag Spec Pistons kit are meticulously crafted for enthusiasts and professionals aiming to push the limits of their Audi 2.5TFSI DAZ\/DNW engines. ?JDY¡¯s pistons provide the durability, power, and performance needed for success on the street or track.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"JDY Performance","offers":[{"title":"Default Title","offer_id":52430448558240,"sku":"DAZ-105-JDY-PA","price":2000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/7060\/7520\/files\/2_9677283b-60c2-4287-ae34-6535a90ad288.jpg?v=1745892054"}],"url":"https:\/\/jdyperformance.com\/id-cn\/collections\/jdy-custom-diamond-pistons.oembed","provider":"JDY Performance","version":"1.0","type":"link"}