{"product_id":"eibach-ers-12-00-in-length-x-2-50-in-id-coil-over-spring-9","title":"Eibach ERS 12.00 in. Length x 2.50 in. ID Coil-Over Spring","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e1200.250.0500S\u003c\/span\u003e   |   \u003cstrong\u003eUPC:\u003c\/strong\u003e 803050289131\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eEibach ERS 12.00 in. Length x 2.50 in. ID Coil-Over Spring - 500 lb\/in Rate\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Eibach ERS 12.00 in. Length x 2.50 in. ID Coil-Over Spring delivers a 500 lb\/in rate for coil-over suspension systems in racing and performance vehicles. Designed to fit 2.50 in. ID shock bodies from brands like QA1, Bilstein, and Penske, it provides firm damping control for drag racing, road course, and autocross. Expect reliable load support and repeatable performance lap after lap.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Rate:\u003c\/strong\u003e 500 lbs\/in for sharp response and stability under high cornering loads in track conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Height:\u003c\/strong\u003e 12.00 in. matches common coil-over stroke requirements for full suspension travel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter:\u003c\/strong\u003e 2.50 in. ensures drop-in compatibility with standard coil-over strut housings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e High-tensile chrome-silicon steel, shot-peened, preset, and double-tempered to resist sagging and fatigue.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Silver powder coat with laser-etched rate marking resists corrosion and simplifies inventory management.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm shock valving matches 500 lb\/in rate to avoid bottoming or harsh ride.\u003c\/li\u003e\n\u003cli\u003eInspect for proper bind under full compression before track use.\u003c\/li\u003e\n\u003cli\u003ePackaged in rigid box to maintain shape during transit.\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\u003eLubricate coils lightly with silicone spray for smooth perch seating.\u003c\/li\u003e\n\u003cli\u003eWorks with OEM or aftermarket coil-over perches and lock nuts; no adapters required.\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\u003eAll\u003c\/td\u003e\n\u003ctd\u003eCoil-Over Equipped Vehicles\u003c\/td\u003e\n\u003ctd\u003e2.50\" ID Shocks (Drag\/Road Race)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003eCoil-Over Equipped Vehicles\u003c\/td\u003e\n\u003ctd\u003eAutocross\/Street Performance\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\u003eChampionship-winning design used in global racing series.\u003c\/li\u003e\n\u003cli\u003eIndustry-leading tolerances: ±1mm height, ±2.5% rate accuracy.\u003c\/li\u003e\n\u003cli\u003eCNC-ground ends and proprietary wire for flawless coil bind resistance.\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 Does this fit specific coil-over kits?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes, direct fit for QA1 Proma Star, Bilstein 5125, Penske 7500, and most 2.50 in. ID coil-overs in dragsters, formula cars, and kit cars.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material and treatments are applied?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Chrome-silicon steel with shot-peening, stress-relief, and powder coating for 300% longer life than stock springs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What warranty coverage applies?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Limited lifetime warranty on manufacturing defects when installed and used per guidelines.\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\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 cardboard box, 13 x 4 x 4 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4.8 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Eibach","offers":[{"title":"Default Title","offer_id":41022158045263,"sku":"EIB1200.250.0500S","price":73.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/products\/eibach-ers-12_00-in_-length-x-2_50-in_-id-coil-over-spring-eibach_818525f1.jpg?v=1766042292","url":"https:\/\/www.blackopsautoworks.com\/products\/eibach-ers-12-00-in-length-x-2-50-in-id-coil-over-spring-9","provider":"Black Ops Auto Works","version":"1.0","type":"link"}