{"product_id":"hks-fa20-2-1l-low-comp-step-2-full-kit-pistons-rods-crank-2013-2021-toyota-86-subaru-brz-scion-frs","title":"HKS FA20 2.1L Low-Comp Step 2 Full Kit (Pistons, Rods, Crank) -  2013-2021 Toyota 86 \/ Subaru BRZ \/ Scion FRS","description":"\u003cp\u003eIf you are chasing power via high boost with the FA20 engine in your 2013-21 86 BRZ FRS, you'll need the 2.1L Low Compression Kit from HKS. With this kit, you'll get forged pistons, I-Beam connecting rods, and a forged crankshaft to match. No need to bore out your cylinders, as this kit is compatible with the stock 86mm factory size.\u003c\/p\u003e\n\u003ch3\u003eMain Features:\u003c\/h3\u003e\n\u003cul class=\"listmark_rd mb20\"\u003e\n\u003cli\u003eForged material improves durability.\u003c\/li\u003e\n\u003cli\u003eThe cavity is designed in piston crown to optimize the atomization of fuel during injection.\u003c\/li\u003e\n\u003cli\u003e3D Piston crown design to optimize tumble flow.\u003c\/li\u003e\n\u003cli\u003eThe piston is recessed to match high lift HKS camshafts.\u003c\/li\u003e\n\u003cli\u003eThe compression ratio range is widened depending on the gasket's specification.\u003c\/li\u003e\n\u003cli\u003eMolybdenum coated pistons reduce friction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/3457\/9704\/files\/fa20lc_img02b.jpg?v=1781833768\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003eSTEP 2 Kit Features:\u003c\/h3\u003e\n\u003cul class=\"listmark_rd mb20\"\u003e\n\u003cli\u003eHighly durable I-beam and cracked connecting rod are included. The connecting rod bolt size is optimized.\u003c\/li\u003e\n\u003cli\u003eThe thickness was optimized by strength analysis. The weight increase was minimized, and the strength was increased by approximately 30%.\u003c\/li\u003e\n\u003cli\u003eI-beam shape was selected to increase the buckling strength.\u003c\/li\u003e\n\u003cli\u003eThe ideal shape was realized, and the fracture origin on the surface was eliminated by forged billet manufacturing. To improve fatigue strength, strong shot peening treatment is carried out on the surface.\u003c\/li\u003e\n\u003cli\u003eThe optimum heat treatment for chrome molybdenum steel was carried out to improve both strength and toughness.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCrankshaft:\u003c\/h4\u003e\n\u003cul class=\"listmark_rd mb20\"\u003e\n\u003cli\u003eThe crankshaft is made from forged materials.\u003c\/li\u003e\n\u003cli\u003eBespoke pin journal size is employed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/3457\/9704\/files\/fa20lc_img03.jpg?v=1781833775\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/3457\/9704\/files\/hks21004-AT004_1.png?v=1781833928\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003eInstall Instructions:\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.hks-power.co.jp\/product_search\/product\/download\/3992\/ja_en\/21003-AT004.pdf\" title=\"Install Instructions hks21003-AT004\" target=\"_blank\"\u003e21003-AT004\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.hks-power.co.jp\/product_search\/product\/download\/3991\/ja_en\/23004-AT002.pdf\" title=\"Install Instructions hks23004-AT002\" target=\"_blank\"\u003e23004-AT002\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.hks-power.co.jp\/product_search\/product\/download\/5235\/ja_en\/23006-AT003.pdf\" title=\"Install Instructions hks23006-AT003\" target=\"_blank\"\u003e23006-AT003\u003c\/a\u003e\u003c\/p\u003e","brand":"HKS","offers":[{"title":"Default Title","offer_id":49209556369656,"sku":"hks21004-AT004","price":4900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3457\/9704\/files\/fa20_img01.jpg?v=1781833959","url":"https:\/\/driven.media\/products\/hks-fa20-2-1l-low-comp-step-2-full-kit-pistons-rods-crank-2013-2021-toyota-86-subaru-brz-scion-frs","provider":"Driven.Media","version":"1.0","type":"link"}