{"product_id":"eibach-ers-5-00-in-length-x-2-25-in-id-coil-over-spring-2","title":"Eibach ERS 5.00 in. Length x 2.25 in. ID Coil-Over Spring","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e0500.225.0550\u003c\/span\u003e   |   \u003cstrong\u003eUPC:\u003c\/strong\u003e 803050103505\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eEibach ERS 5.00 in. Length x 2.25 in. ID x 550 lb\/in Coil-Over Spring\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Eibach ERS 0500.225.0550 is a precision race spring designed for coil-over shock applications in motorsports. With a 2.25-inch inside diameter, 5.00-inch free height, and 550 lb\/in spring rate, it delivers consistent performance across drag racing, oval track, and road course setups. Manufactured with tight tolerances for repeatable linear rates, this spring ensures reliable suspension response under high loads.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinear Spring Rate:\u003c\/strong\u003e 550 lb\/in provides smooth, predictable progression for balanced handling and control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Dimensions:\u003c\/strong\u003e 5.00 in. free length, 2.25 in. ID, 2.8125 in. OD, 0.938 in. wire diameter with ground flat ends for exact fit in coilover assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTight Tolerances:\u003c\/strong\u003e Industry-low variation (+\/-1%) from series production ensures consistent setup lap after lap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChrome Silicon Steel:\u003c\/strong\u003e Heat-treated and shot-peened for fatigue resistance and long life in demanding race conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Block height 2.19 in., max expansion 7.88 in. supports high preload without binding.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eIntended for racing coilover shocks; verify ID compatibility before install.\u003c\/li\u003e\n\u003cli\u003eStore in dry conditions to maintain steel integrity.\u003c\/li\u003e\n\u003cli\u003eShips in protective cardboard tube to prevent damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eMatch to shocks with 2.25-2.30 in. body diameter; adjust preload to achieve 50-70% bind.\u003c\/li\u003e\n\u003cli\u003eCompatible with most aftermarket coilover hardware including QA1, Bilstein, and Fox bodies.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003eCoilover Shocks\u003c\/td\u003e\n\u003ctd\u003e2.25\" ID Race Applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose Eibach?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDecades of race spring manufacturing experience worldwide.\u003c\/li\u003e\n\u003cli\u003eProven in professional drag, dirt oval, and road racing series.\u003c\/li\u003e\n\u003cli\u003eEngineered for repeatable rates and minimal settling over time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What coilover shocks does this spring fit?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Fits universal 2.25 in. ID coilover shocks from QA1, Bilstein, Penske, Ohlins, and similar race shocks used in dragsters, stock cars, and sports racers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material is used and what are the exact specs?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e High-tensile chrome silicon steel; 5.00 in. free height, 2.25 in. ID, 2.8125 in. OD, 0.938 in. wire dia., 550 lb\/in rate, 2.19 in. block height.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What is the warranty and install tips?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Eibach offers a limited lifetime warranty against manufacturing defects; torque per shock specs, check for bind at full droop, recheck preload after 10 heat cycles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground \/ USPS Priority\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Protective tube; box dimensions 6 in. L x 6 in. W x 6 in. H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.00 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Eibach","offers":[{"title":"Default Title","offer_id":42057206071375,"sku":"EIB0500.225.0550","price":72.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/eibach-ers-5_00-in_-length-x-2_25-in_-id-coil-over-spring-eibach_62d50f04.jpg?v=1766042739","url":"https:\/\/www.blackopsautoworks.com\/products\/eibach-ers-5-00-in-length-x-2-25-in-id-coil-over-spring-2","provider":"Black Ops Auto Works","version":"1.0","type":"link"}