{"product_id":"eibach-ers-4-00-inch-coilover-spring-3-00-inch-inside-diameter-eib0400-300-0400s","title":"Eibach ERS 4.00-Inch Coilover Spring, 3.00-Inch Inside Diameter – EIB0400.300.0400S","description":"Renowned for our extensive catalog of over 1,500 precision engineered race springs. Eibach race springs offer unparalled customization and performance optimization across a wide spectrum of racing applications. From shocks to pull-bars we offer a wide range of springs solutions to fine tune the handling dynamics of your race car.\nIndividual Motorsport Spring\n\u003cul\u003e\n  \u003cli\u003eEibach 3.00\" Inside Diameter Coilover Springs Available in a Full Range of Rates and Lengths\u003c\/li\u003e\n  \u003cli\u003eMaximum Travel in Combination with Smallest Block Heights\u003c\/li\u003e\n  \u003cli\u003eLegendary Eibach Off-Road Durability and Performance\u003c\/li\u003e\n  \u003cli\u003eHighest Linearity and Guaranteed Consistency\u003c\/li\u003e\n  \u003cli\u003eEach Spring Individually Tested\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Eibach ERS individual motorsport spring is engineered for race vehicles that require precise suspension tuning and consistent performance. Designed with a 3.00-inch inside diameter and a 4.00-inch free length, this coilover spring supports customized spring-rate selection across a wide range of racing applications. Its compact design helps maximize usable suspension travel while maintaining a small block height.\u003c\/p\u003e\u003cp\u003eBuilt with Eibach’s motorsport engineering expertise, the spring delivers dependable durability for demanding on-track and off-road environments. Each spring is individually tested to support exceptional consistency and linear performance, helping drivers and suspension tuners achieve predictable handling characteristics. The Eibach ERS spring is suitable for applications where accurate suspension balance, repeatable response, and race-focused adjustability are essential.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBrief Description:\u003c\/strong\u003e A precision-engineered Eibach ERS coilover spring for motorsport suspension systems, offering consistent linear performance, efficient travel utilization, and durable construction.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Product Specifications \u0026amp; Technical Data:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrand: Eibach\u003c\/li\u003e\n\u003cli\u003ePart Number: EIB0400.300.0400S\u003c\/li\u003e\n\u003cli\u003eProduct Type: Individual motorsport coilover spring\u003c\/li\u003e\n\u003cli\u003eSeries: Eibach ERS\u003c\/li\u003e\n\u003cli\u003eInside Diameter: 3.00 inches\u003c\/li\u003e\n\u003cli\u003eFree Length: 4.00 inches\u003c\/li\u003e\n\u003cli\u003eApplication: Racing and performance suspension systems\u003c\/li\u003e\n\u003cli\u003eTesting: Individually tested for consistency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhat’s Included:\u003c\/strong\u003e One Eibach ERS individual motorsport coilover spring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Vehicle-specific fitment data was not provided. Verify spring dimensions, rate requirements, available travel, and suspension compatibility before installation.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e3.00-inch inside diameter: Designed for compatible Eibach ERS and motorsport coilover suspension systems.\u003c\/li\u003e\n\u003cli\u003e4.00-inch spring length: Supports compact race-suspension packaging and application-specific tuning.\u003c\/li\u003e\n\u003cli\u003eMaximum usable travel: Engineered to provide efficient suspension travel with a small block height.\u003c\/li\u003e\n\u003cli\u003eOff-road durability: Built for demanding racing and performance driving conditions.\u003c\/li\u003e\n\u003cli\u003eLinear performance: Delivers predictable spring response for precise handling adjustments.\u003c\/li\u003e\n\u003cli\u003eIndividually tested: Each spring is checked to support dependable consistency from unit to unit.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Y\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"Eibach","offers":[{"title":"Default Title","offer_id":67581482696956,"sku":"0400.300.0400S","price":120.24,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/25d6bed76a290e07e259e5b48ee06a11L_6b882406-ce64-4057-9456-56679d1bda34.jpg?v=1790407957","url":"https:\/\/diycustoms.store\/products\/eibach-ers-4-00-inch-coilover-spring-3-00-inch-inside-diameter-eib0400-300-0400s","provider":"diycustoms.store","version":"1.0","type":"link"}