{"product_id":"eibach-ers-18-00-inch-coilover-spring-3-75-inch-inside-diameter-400-lb-in-rate-eib1800-375-0400s","title":"Eibach ERS 18.00-Inch Coilover Spring, 3.75-Inch Inside Diameter, 400 lb\/in Rate - EIB1800.375.0400S","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 3.75\" 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 EIB1800.375.0400S Individual Motorsport Spring is engineered for race vehicles that require precise suspension tuning and dependable performance. Designed with a 3.75-inch inside diameter, this coilover spring provides a reliable foundation for optimizing vehicle handling across a wide range of motorsport applications. Its 400 lb\/in spring rate supports controlled suspension response and allows racers and builders to fine-tune chassis balance according to track conditions, driving style, and vehicle setup.\u003c\/p\u003e\u003cp\u003eEibach race springs are developed for maximum travel while maintaining a compact block height, helping make efficient use of available suspension space. The spring is manufactured for high linearity and consistent performance, allowing suspension adjustments to remain predictable throughout repeated use. Every spring is individually tested to help ensure dependable quality and uniform response from one component to the next. Eibach’s proven off-road durability and motorsport engineering make this spring a suitable choice for demanding racing environments, custom coilover systems, and performance suspension builds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Product Specifications and Technical Data\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eProduct Type: Individual motorsport coilover spring\u003c\/li\u003e\n\u003cli\u003eBrand: Eibach\u003c\/li\u003e\n\u003cli\u003ePart Number: EIB1800.375.0400S\u003c\/li\u003e\n\u003cli\u003eSpring Series: ERS\u003c\/li\u003e\n\u003cli\u003eInside Diameter: 3.75 inches\u003c\/li\u003e\n\u003cli\u003eNominal Spring Length: 18.00 inches\u003c\/li\u003e\n\u003cli\u003eSpring Rate: 400 lb\/in\u003c\/li\u003e\n\u003cli\u003eApplication: Racing, motorsport, and performance coilover suspension systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eOne Eibach ERS individual motorsport coilover spring\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eFitment is application-specific and should be confirmed against the vehicle, coilover hardware, required spring rate, and available suspension travel before installation. This spring is intended for compatible racing and performance suspension systems rather than universal direct-fit installation on every vehicle. Professional setup and suspension tuning are recommended to achieve the desired handling characteristics.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e3.75-inch inside diameter supports compatibility with matching coilover suspension hardware\u003c\/li\u003e\n\u003cli\u003e400 lb\/in spring rate enables precise suspension tuning for racing and performance applications\u003c\/li\u003e\n\u003cli\u003e18.00-inch spring length provides substantial available suspension travel when properly matched to the system\u003c\/li\u003e\n\u003cli\u003eIndividually tested for high linearity, consistent performance, and dependable motorsport quality\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":67580133409020,"sku":"1800.375.0400S","price":190.69,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/3a3fcbf25e4dcbf9017422e76b1d2295L_709617d8-fa22-47d8-b8ae-1e4543d3c6d9.jpg?v=1790396537","url":"https:\/\/diycustoms.store\/products\/eibach-ers-18-00-inch-coilover-spring-3-75-inch-inside-diameter-400-lb-in-rate-eib1800-375-0400s","provider":"diycustoms.store","version":"1.0","type":"link"}