{"product_id":"eibach-ers-4-00-inch-length-x-2-00-inch-id-coil-over-race-spring-1-250-lb-in-rate","title":"Eibach ERS 4.00-Inch Length x 2.00-Inch ID Coil-Over Race Spring, 1,250 lb\/in Rate","description":"Eibach's ERS line has evolved over the years to be the world's most prominent, comprehensive and superior Race Spring System. Eibach Race Springs are all manufactured in series production, often repeated, with a strong manufacturing experience. Thus, Eibach constantly achieves the most linear spring characteristic (rate) while maintaining the lowest tolerances and the highest quality in the industry.\n\u003cp\u003eThe Eibach ERS 4.00-Inch Length x 2.00-Inch ID Coil-Over Spring is engineered for serious motorsport and performance suspension applications. Part number EIB0400.200.1250 uses Eibach’s proven ERS race spring design to deliver consistent, predictable suspension performance for vehicles equipped with compatible coil-over systems.\u003c\/p\u003e\u003cp\u003eEibach manufactures ERS springs in repeatable series production, combining extensive manufacturing experience with strict quality control. This process helps maintain a highly linear spring rate, low production tolerances, and reliable performance across demanding track, racing, and competition environments. The 1,250-pound-per-inch rate provides firm suspension control for applications requiring increased support and precise chassis response.\u003c\/p\u003e\u003cp\u003eDesigned around a 2.00-inch inside diameter and 4.00-inch free length, this coil-over spring is intended for use with compatible spring perches, dampers, and suspension hardware. Confirm the required spring rate, installed height, travel, and vehicle-specific fitment before installation. The spring is supplied as an individual component for custom suspension tuning and replacement applications.\u003c\/p\u003e\u003ch3\u003eProduct Specifications and Technical Data\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBrand: Eibach\u003c\/li\u003e\n\u003cli\u003eProduct Line: ERS Race Spring System\u003c\/li\u003e\n\u003cli\u003ePart Number: EIB0400.200.1250\u003c\/li\u003e\n\u003cli\u003eApplication Type: Automotive coil-over suspension\u003c\/li\u003e\n\u003cli\u003eSpring Rate: 1,250 pounds per inch\u003c\/li\u003e\n\u003cli\u003eFree Length: 4.00 inches\u003c\/li\u003e\n\u003cli\u003eInside Diameter: 2.00 inches\u003c\/li\u003e\n\u003cli\u003eSpring Quantity: One coil-over spring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cp\u003eOne Eibach ERS coil-over race spring. Compatible spring hardware and vehicle-specific installation components are not included unless specified separately.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLinear spring rate: Provides consistent and predictable suspension response throughout the operating range.\u003c\/li\u003e\n\u003cli\u003eMotorsport-focused design: Developed for racing, track, and performance coil-over applications.\u003c\/li\u003e\n\u003cli\u003eHigh manufacturing consistency: Series production helps maintain low tolerances and repeatable spring performance.\u003c\/li\u003e\n\u003cli\u003eSuspension tuning capability: The 1,250-pound-per-inch rate supports custom chassis setup and precise handling adjustments.\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: Unknown\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\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"Eibach","offers":[{"title":"Default Title","offer_id":67581210460412,"sku":"0400.200.1250","price":109.61,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/c24c7ce5c049c03c6a9b0b46035ed1bd_c96d65e1-4cb7-4809-ae03-40a49f4b6e19.jpg?v=1790406422","url":"https:\/\/diycustoms.store\/products\/eibach-ers-4-00-inch-length-x-2-00-inch-id-coil-over-race-spring-1-250-lb-in-rate","provider":"diycustoms.store","version":"1.0","type":"link"}