{"product_id":"hks-hipermax-r-coilovers-toyota-gr-supra-a90-a91","title":"HKS Hipermax R Coilovers – Toyota GR Supra A90\/A91","description":"\u003cdiv class=\"sl-desc\"\u003e\n\u003ch2\u003eOVERVIEW\u003c\/h2\u003e\n\u003cp\u003eHipermax R is the top of HKS's coilover range, built on what HKS learned in the years since MAX IV SP. It is aimed at GR Supra owners who drive hard on track but still have to live with the car on the street, and it is tuned to bring out more sport-driving performance than the factory electronically controlled dampers by matching the Supra's stiff body to high-grip tires.\u003c\/p\u003e\n\u003cp\u003eThe front uses HKS's inverted strut, which keeps usable stroke when the car is lowered and resists the bending loads a strut sees under braking and cornering. The rear separates the damper and spring. Both ends run spherical-bearing upper mounts, 30 clicks of damping adjustment and height-adjustable lower brackets, so ride height is set independently of spring preload. Hipermax R exclusives include HKS's SRF (Super Response Fluid) damper oil, LVS (Low Vibration Spring) springs and a dedicated upper spring retainer that keeps the damper axis and spring load line aligned. Spring rates are considerably stiffer than Hipermax S.\u003c\/p\u003e\n\u003cp\u003eHipermax R replaces the factory dampers. On cars with the factory electronically controlled (adaptive) dampers it needs the HKS Suspension Error Canceler, which is not included in this kit.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eType: full coilover kit, four corners\u003c\/li\u003e\n\u003cli\u003eFront: inverted strut, coilover layout\u003c\/li\u003e\n\u003cli\u003eRear: normal damper, separated damper and spring\u003c\/li\u003e\n\u003cli\u003eDamping adjustment: 30 steps front and rear\u003c\/li\u003e\n\u003cli\u003eUpper mounts: spherical bearing front and rear\u003c\/li\u003e\n\u003cli\u003eHeight-adjustable lower brackets: front and rear\u003c\/li\u003e\n\u003cli\u003eSpring rates: front 137 N\/mm (14.0 kgf\/mm), rear 196 N\/mm (20.0 kgf\/mm)\u003c\/li\u003e\n\u003cli\u003eSpring free length: front 150 mm, rear 200 mm, straight\u003c\/li\u003e\n\u003cli\u003eHelper springs: front and rear (19.8 N\/mm)\u003c\/li\u003e\n\u003cli\u003eSpring rate change at factory: possible front and rear (±20 N\/mm recommended range)\u003c\/li\u003e\n\u003cli\u003eRide height (DB42 \/ DB02 \/ DB22 \/ DB82): front −24 mm default (−15 to −45 mm), rear −29 mm default (0 to −71 mm)\u003c\/li\u003e\n\u003cli\u003eRide height (DB06 manual): front −24 mm default (−19 to −49 mm), rear −25 mm default (0 to −70 mm)\u003c\/li\u003e\n\u003cli\u003eHipermax R exclusive: SRF damper oil, LVS springs, upper spring retainer\u003c\/li\u003e\n\u003cli\u003eMade in Japan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTwo front inverted coilover struts with spherical-bearing upper mounts\u003c\/li\u003e\n\u003cli\u003eTwo rear dampers with spherical-bearing upper mounts\u003c\/li\u003e\n\u003cli\u003eFront and rear main springs and helper springs\u003c\/li\u003e\n\u003cli\u003eHeight-adjustable lower brackets and adjustment hardware\u003c\/li\u003e\n\u003cli\u003eHKS installation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTECH RESOURCES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequired extra (cars with factory adaptive dampers):\u003c\/strong\u003e \u003ca href=\"https:\/\/speedlogicauto.com\/products\/hks-suspension-error-canceler-toyota-gr-supra-a90-a91\"\u003eHKS Suspension Error Canceler 45012-AT001\u003c\/a\u003e, sold separately. Without it the car shows a suspension fault in the cluster and center display once the factory dampers are unplugged. Not needed on 2.0 cars with conventional dampers (DB82).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequired after install:\u003c\/strong\u003e a full four-wheel alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation manual (HKS):\u003c\/strong\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2307\/8117\/files\/hks-80310-AT003-hipermax-r-gr-supra-installation-manual.pdf?v=1793227647\"\u003e80310-AT003 Hipermax R installation manual (PDF)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation notes:\u003c\/strong\u003e professional installation recommended. Corner-by-corner damper replacement on a lift; set ride height at the lower brackets before final torque, then align the car.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional:\u003c\/strong\u003e pair with the \u003ca href=\"https:\/\/speedlogicauto.com\/products\/hks-carbon-brace-toyota-gr-supra-a90-a91\"\u003eHKS Carbon Brace\u003c\/a\u003e for the full HKS chassis package.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eADAS:\u003c\/strong\u003e HKS warns that Toyota Safety Sense radar and camera aim can be affected when the car is lowered. Have the calibration checked after install.\u003c\/li\u003e\n\u003cli\u003ePrice is for the item only; labor is not included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e80310-AT003\u003c\/strong\u003e — HKS Hipermax R Full Kit, Toyota GR Supra (DB42 \/ DB02 \/ DB06 \/ DB22 \/ DB82)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eVEHICLE APPLICATIONS\u003c\/h2\u003e\n\u003ctable class=\"va-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003eGR Supra 3.0 (automatic)\u003c\/td\u003e\n\u003ctd\u003eA90\/A91 (DB42 \/ DB02)\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2020+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003eGR Supra 3.0 (6-speed manual)\u003c\/td\u003e\n\u003ctd\u003eA90 (DB06)\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2023+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003eGR Supra 2.0\u003c\/td\u003e\n\u003ctd\u003eA90 (DB22 \/ DB82)\u003c\/td\u003e\n\u003ctd\u003eB48 2.0L Turbo I4\u003c\/td\u003e\n\u003ctd\u003e2021+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"HKS","offers":[{"title":"Hipermax R Full Kit, GR Supra 3.0 and 2.0 (80310-AT003)","offer_id":53074752831768,"sku":"80310-AT003","price":3300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2307\/8117\/files\/OKMB0wh7ePtuKEUGh8c4Gd0TialSQLezKHOmaVrw.jpg?v=1787687424","url":"https:\/\/speedlogicauto.com\/products\/hks-hipermax-r-coilovers-toyota-gr-supra-a90-a91","provider":"SPEED LOGIC","version":"1.0","type":"link"}