{"product_id":"h-r-17-19-porsche-911-991-gt3-rs-id-race-spring","title":"H\u0026R 17-19 Porsche 911 \/ 991 GT3 RS ID Race Spring","description":"\u003cp\u003eH\u0026amp;R 2.50? I.D. Race Springs are made with extremely high tensile strength wire alloy which allows the use of a thinner wire. Manufactured using advanced materials and precision technology in Germany, H\u0026amp;R 2.50? I.D. Race Springs are crafted from special lightweight (hf) 54SiCr6 spring steel. For any given spring rate, they are on average 15% lighter and have 10% more travel than competitors? springs. Main springs range from 6? to 18? in length and are available in a wide selection of spring rates.  TENDER SPRINGS: H\u0026amp;R 2.50? I.D. Tender Springs are made of trapezoidal (flat rather than round) spring wire and have a low block height for maximum travel. These springs are designed for demanding motorsport environments, and like all H\u0026amp;R springs, have been pre-blocked at the factory so they will never set or sag. The H\u0026amp;R 60mm I.D. Race Spring line is crafted from special lightweight (hf) 54SiCr6 spring steel and is the most comprehensive 60mm I.D. Race Program in the U.S. If you own a Porsche GT3 or another Euro spec car, our range of 60mm I.D. Race Springs has you covered. With hundreds of main springs and tender springs available, H\u0026amp;R has the lengths and rates necessary for optimal tuning and setup. The H\u0026amp;R complete line of 60mm I.D. main springs range from 80mm to 300mm (25.4mm = 1 inch) in length and 25 N to 700 N (N\/mm x 5.709 = pounds\/inch) spring rates.\u003c\/p\u003e\n\u003ch4\u003eFeatures \u0026amp; Benefits\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e(hf) 54SiCr6 spring steel, lighter weight, more spring travel\u003c\/li\u003e\n\u003cli\u003eWide variety of spring lengths and spring rates\u003c\/li\u003e\n\u003cli\u003eAllows custom tuning of your suspension\u003c\/li\u003e\n\u003cli\u003eTender springs available\u003c\/li\u003e\n\u003cli\u003emade in Germany\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eDownloads \u0026amp; Resources\u003c\/h4\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"https:\/\/d32vzsop7y1h3k.cloudfront.net\/77a12eda24191cde410d28410209e0b0.PDF\" target=\"_blank\" rel=\"noopener\"\u003eInstallation Instructions (PDF)\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e","brand":"H\u0026R","offers":[{"title":"Default Title","offer_id":45931440308360,"sku":"hrs54090","price":629.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/2491\/6104\/files\/3e3bb8c0-465c-460a-99a1-a6058591a878-800.jpg?v=1780464300","url":"https:\/\/www.allianceracing.com\/products\/h-r-17-19-porsche-911-991-gt3-rs-id-race-spring","provider":"Alliance Racing","version":"1.0","type":"link"}