{"product_id":"eibach-ers-linear-main-spring-3","title":"Eibach ERS Linear Main Spring","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e1000.300.0400S\u003c\/span\u003e   |   \u003cstrong\u003eUPC:\u003c\/strong\u003e 803050416667\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eEibach ERS Linear Main Spring - Silver Coilover Spring 3.00\" I.D. 400 lb\/in\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Eibach ERS Linear Main Spring (1000.300.0400S) is a premium silver coilover spring built for high-performance suspension setups. This universal spring fits most strut-type coilover systems across various vehicles, providing a consistent 400 lb\/in linear rate for responsive handling. Its robust design supports track days and daily driving with reliable performance.\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 400 lb\/in delivers predictable response and balanced control through the full travel range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.00\" Inner Diameter:\u003c\/strong\u003e Direct compatibility with standard coilover strut bodies for easy integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7.00\" Free Height:\u003c\/strong\u003e Allows ample suspension travel while maintaining stability under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.79\" Wire Diameter:\u003c\/strong\u003e Heavy-duty construction resists fatigue for extended use in racing conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilver Powder Coat:\u003c\/strong\u003e Identifies linear rate; shot-peened and stress-relieved for consistent durability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eInspect spring ends for proper seating on perches before installation.\u003c\/li\u003e\n\u003cli\u003eStore in dry conditions to preserve coating and performance.\u003c\/li\u003e\n\u003cli\u003ePackaged in protective box for secure 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\u003eUse quality spring compressors rated for 400+ lb\/in rates.\u003c\/li\u003e\n\u003cli\u003eCompatible with most adjustable coilover sleeves and 3.00\" ID seats.\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\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eE36\/E46 3-Series\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eE90 3-Series\/M3\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eMazda\u003c\/td\u003e\n\u003ctd\u003eMiata NA\/NB\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic EG\/EK\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eWRX\/STI\u003c\/td\u003e\n\u003ctd\u003eAll\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\u003eProven in motorsports with championship teams worldwide.\u003c\/li\u003e\n\u003cli\u003eGerman-engineered for exact tolerances and load consistency.\u003c\/li\u003e\n\u003cli\u003eTested beyond OEM standards for real-world reliability.\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 Is this spring vehicle-specific?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Universal design fits most coilover kits with 3.00\" ID compatibility; verify perch diameter and stroke length for your setup.\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 High-tensile chrome silicon steel with silver powder coat finish; shot-peened, tempered, and preset for shape retention.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What warranty applies?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Eibach one-year limited warranty against manufacturing defects for racing springs; register product for coverage.\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, 10\" L x 7\" W x 7\" H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 6.1 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Eibach","offers":[{"title":"Default Title","offer_id":41155717627983,"sku":"EIB1000.300.0400S","price":86.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/products\/eibach-ers-linear-main-spring-eibach_8c789b65.jpg?v=1766042398","url":"https:\/\/www.blackopsautoworks.com\/products\/eibach-ers-linear-main-spring-3","provider":"Black Ops Auto Works","version":"1.0","type":"link"}