{"product_id":"eibach-ers-12-00-inch-length-x-3-75-inch-id-coil-over-spring-350-lb-in-rate","title":"Eibach ERS 12.00-Inch Length x 3.75-Inch ID Coil-Over Spring, 350 lb\/in Rate","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 Motorsport Spring is a precision-engineered coil-over spring designed for racing applications that demand consistent handling, predictable suspension response, and reliable performance. Part number EIB1200.375.0350S features a 3.75-inch inside diameter, a 12.00-inch free length, and a 350 lb\/in spring rate, making it suitable for suspension setups requiring accurate spring selection and repeatable tuning.\u003c\/p\u003e\u003cp\u003eAs part of Eibach’s extensive race spring range, this individual motorsport spring is manufactured to deliver high linearity and consistent performance across demanding track environments. Its design maximizes suspension travel while maintaining a compact block height, helping race teams fine-tune handling dynamics and optimize the balance between grip, control, and ride response. Each spring is individually tested to support dependable performance and quality assurance.\u003c\/p\u003e\u003cp\u003eThe Eibach ERS spring is built with the durability expected from a leading motorsport suspension manufacturer. Its 3.75-inch inside diameter is compatible with coil-over applications using the corresponding spring hardware, while the 350 lb\/in rate allows suspension builders and drivers to tailor vehicle behavior to specific chassis, tire, circuit, and driving requirements. This spring is intended for automotive racing and performance suspension use; confirm application compatibility, available travel, and required spring rate before installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e One Eibach ERS individual motorsport coil-over spring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Universal racing and performance coil-over applications when the spring diameter, length, rate, and suspension hardware are properly matched. Vehicle-specific fitment data was not provided.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e3.75-inch inside diameter supports compatible coil-over suspension applications\u003c\/li\u003e\n\u003cli\u003e350 lb\/in spring rate enables precise suspension tuning for racing setups\u003c\/li\u003e\n\u003cli\u003e12.00-inch free length provides a broad range of suspension setup options\u003c\/li\u003e\n\u003cli\u003eMaximum suspension travel with minimal block height helps optimize handling performance\u003c\/li\u003e\n\u003cli\u003eLegendary Eibach off-road durability and motorsport reliability\u003c\/li\u003e\n\u003cli\u003eHigh linearity and guaranteed consistency for predictable suspension response\u003c\/li\u003e\n\u003cli\u003eEach spring is individually tested for quality and performance consistency\u003c\/li\u003e\n\u003cli\u003ePrecision-engineered for race cars, performance vehicles, and custom suspension applications\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":67579619082492,"sku":"1200.375.0350S","price":153.45,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/3a3fcbf25e4dcbf9017422e76b1d2295L_ebed1b63-94be-41f9-b6a1-f9196977bca8.jpg?v=1790390698","url":"https:\/\/diycustoms.store\/products\/eibach-ers-12-00-inch-length-x-3-75-inch-id-coil-over-spring-350-lb-in-rate","provider":"diycustoms.store","version":"1.0","type":"link"}