{"product_id":"eibach-ers-linear-main-spring-1","title":"Eibach ERS Linear Main Spring","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e1400.300.0175S\u003c\/span\u003e   |   \u003cstrong\u003eUPC:\u003c\/strong\u003e 803050287977\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eEibach ERS Linear Main Spring - Silver Coilover Spring 3.00\" I.D. 7.00\" Height 175 lb\/in\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Eibach ERS Linear Main Spring 1400.300.0175S is a precision-engineered silver powder-coated coilover spring built for racing and high-performance street use. With a 3.00\" inner diameter, it installs directly into compatible coilover strut assemblies on sport compacts, muscle cars, imports, and race vehicles. Its linear rate ensures predictable handling, reduced body roll, and improved traction under load.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinear Rate Design:\u003c\/strong\u003e Delivers consistent 175 lb\/in rate across full travel for stable cornering and braking response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.00\" Inner Diameter:\u003c\/strong\u003e Matches standard aftermarket coilover struts for straightforward integration in most setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7.00\" Free Length:\u003c\/strong\u003e Provides generous suspension travel while maintaining proper ride height.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilver Powder Coat Finish:\u003c\/strong\u003e Epoxy coating protects against corrosion and harsh track conditions for extended durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Tensile Construction:\u003c\/strong\u003e Shot-peened chrome silicon steel withstands extreme loads up to 1215 lbs with minimal sag.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePair with matching helper or secondary springs for complete coilover assembly.\u003c\/li\u003e\n\u003cli\u003eInspect spring seating and preload during setup to ensure even load distribution.\u003c\/li\u003e\n\u003cli\u003eSpecial order processing may apply; confirm stock before ordering.\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 safely using coilover-specific tools to avoid damage.\u003c\/li\u003e\n\u003cli\u003eCompatible with Eibach, KW, BC Racing, and Fortune coilover hardware.\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\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e3\" ID Coilover Systems\u003c\/td\u003e\n\u003ctd\u003eAll Performance Models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1989-1999\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e3 Series\u003c\/td\u003e\n\u003ctd\u003eE36\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1992-2000\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic\u003c\/td\u003e\n\u003ctd\u003eEG\/EK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1989-1997\u003c\/td\u003e\n\u003ctd\u003eMazda\u003c\/td\u003e\n\u003ctd\u003eMiata\u003c\/td\u003e\n\u003ctd\u003eNA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2006\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e3 Series\u003c\/td\u003e\n\u003ctd\u003eE46\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\u003eTrusted by factory teams in Formula Drift, NASA, and SCCA racing series.\u003c\/li\u003e\n\u003cli\u003eManufactured with tolerances under 1mm for exact fit and function.\u003c\/li\u003e\n\u003cli\u003eBacked by decades of suspension engineering expertise.\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 my coilover kit?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes, it fits any 3.00\" ID coilover strut assembly, including Eibach Pro-Street S, KW V3, and BC Racing BR systems; verify perch compatibility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material is used in this spring?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Premium chrome silicon steel, shot-peened, heat-treated, and preset for fatigue resistance and longevity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What warranty coverage applies?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Eibach provides a limited lifetime warranty against manufacturing defects when installed and used properly.\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 or FedEx\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 tube, 8\" x 4\" x 4\" dimensions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.60 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Eibach","offers":[{"title":"Default Title","offer_id":41008728408143,"sku":"EIB1400.300.0175S","price":97.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/products\/eibach-ers-linear-main-spring-eibach.jpg?v=1766042186","url":"https:\/\/www.blackopsautoworks.com\/products\/eibach-ers-linear-main-spring-1","provider":"Black Ops Auto Works","version":"1.0","type":"link"}