{"product_id":"eibach-ers-12-00-inch-l-x-3-00-inch-dia-x-300-lbs-coil-over-spring","title":"Eibach ERS 12.00 inch L x 3.00 inch dia x 300 lbs Coil Over Spring","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e1200.300.0300S\u003c\/span\u003e   |   \u003cstrong\u003eUPC:\u003c\/strong\u003e 803050288240\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eEibach ERS 12.00 inch L x 3.00 inch dia x 300 lbs Coil Over Spring - Universal Coilover Fit\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThis Eibach ERS Super Street coilover spring delivers 300 lbs per inch rate in a 12.00-inch free length and 3.00-inch diameter for precise handling in motorsports. Designed for universal fitment on 3-inch ID coilover shocks used in drag racing, autocross, street strip, and road racing setups. Engineered for consistent performance with reliable load support and height retention under demanding conditions.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChrome Silicon Steel Construction:\u003c\/strong\u003e High-tensile CrSi wire provides fatigue resistance and long-term durability for repeated high-load cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShot Peened and Preset:\u003c\/strong\u003e Increases surface strength and eliminates initial sag, ensuring stable ride height and rate from the first pass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Ground Ends:\u003c\/strong\u003e Flat, squared ends allow secure seating in coilover perches for even load distribution and vibration-free operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePowder-Coated Finish:\u003c\/strong\u003e Silver powder coat resists corrosion and simplifies identification while protecting against environmental damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Rate Linearity:\u003c\/strong\u003e 300 lb\/in progressive response maintains control through corners, launches, and bumps without harshness.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm coilover shock inner diameter measures 3.00 inches and height accommodates 12.00-inch free length.\u003c\/li\u003e\n\u003cli\u003eStore in dry conditions to preserve powder coat and spring integrity.\u003c\/li\u003e\n\u003cli\u003ePackaged in protective sleeve; ships via UPS Ground within continental US.\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\u003eCompress spring with quality tool and verify perch spacing matches 12-inch free height.\u003c\/li\u003e\n\u003cli\u003eCompatible with standard Eibach coilover hardware and 3-inch ID struts\/shocks; check thread pitch.\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 Applications\u003c\/td\u003e\n\u003ctd\u003e3\" ID Shocks (Drag, Autocross, Street)\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\u003eMotorsport-proven design trusted in NHRA, SCCA, and Formula Drift competitions.\u003c\/li\u003e\n\u003cli\u003eGerman engineering with US manufacturing for consistent quality control.\u003c\/li\u003e\n\u003cli\u003eMatchmaker program pairs springs precisely to your setup for dialed-in suspension.\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 spring fit specific vehicles?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Universal design fits any coilover shock with 3.00-inch inner diameter, ideal for custom builds in dragsters, road race cars, and performance imports\/domestics.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material and finish are used?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Wound from premium chrome silicon steel wire with shot-peening, presetting, and silver powder coat for maximum strength and corrosion resistance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What is the warranty and install process?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Lifetime warranty against sagging when used in approved applications. Install requires spring compressor; set preload to achieve desired ride height and corner balance.\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 sleeve, box dimensions 13 x 4 x 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 5.5 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Eibach","offers":[{"title":"Default Title","offer_id":41008728113231,"sku":"EIB1200.300.0300S","price":92.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/products\/eibach-ers-12_00-inch-l-x-3_00-inch-dia-x-300-lbs-coil-over-spring-eibach.jpg?v=1766042168","url":"https:\/\/www.blackopsautoworks.com\/products\/eibach-ers-12-00-inch-l-x-3-00-inch-dia-x-300-lbs-coil-over-spring","provider":"Black Ops Auto Works","version":"1.0","type":"link"}