{"product_id":"eibach-ers-4-00-in-length-x-2-00-in-id-coil-over-race-spring-850-lb-in-part-eib0400-200-0850","title":"Eibach ERS 4.00 in. Length x 2.00 in. ID Coil-Over Race Spring, 850 lb\/in - Part EIB0400.200.0850","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\u003e\u003cstrong\u003eBrief Description:\u003c\/strong\u003e The Eibach ERS Coil-Over Race Spring is engineered for professional and competitive motorsports applications that demand predictable handling, consistent performance, and precise suspension tuning. Part EIB0400.200.0850 is manufactured as part of Eibach’s proven ERS race spring system, offering a highly consistent spring rate for applications that require accurate chassis balance and repeatable suspension behavior.\u003c\/p\u003e\u003cp\u003eEibach produces ERS springs in series production using extensive manufacturing expertise and strict quality control standards. This approach helps deliver a linear spring characteristic while maintaining low production tolerances. The result is a dependable coil-over spring suitable for custom suspension setups, race vehicles, and performance applications where spring consistency is essential.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Product Specifications \u0026amp; Technical Data:\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eProduct Line:\u003c\/strong\u003e Eibach ERS Race Spring System\u003cbr\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e EIB0400.200.0850\u003cbr\u003e\u003cstrong\u003eSpring Type:\u003c\/strong\u003e Coil-over race spring\u003cbr\u003e\u003cstrong\u003eFree Length:\u003c\/strong\u003e 4.00 inches\u003cbr\u003e\u003cstrong\u003eInside Diameter:\u003c\/strong\u003e 2.00 inches\u003cbr\u003e\u003cstrong\u003eSpring Rate:\u003c\/strong\u003e 850 pounds per inch\u003cbr\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e Motorsports and custom performance suspension systems\u003cbr\u003e\u003cstrong\u003eConstruction:\u003c\/strong\u003e Series-produced spring manufactured for consistent rate and low tolerances\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e One Eibach ERS coil-over race spring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e This universal race spring is intended for compatible coil-over suspension assemblies. Verify spring length, inside diameter, installed height, spring rate, and suspension manufacturer requirements before installation. Vehicle-specific fitment data was not provided.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLinear spring characteristic: Delivers predictable suspension response and consistent handling throughout the spring’s operating range.\u003c\/li\u003e\n\u003cli\u003e850-pound-per-inch spring rate: Supports precise suspension tuning for demanding racing and performance applications.\u003c\/li\u003e\n\u003cli\u003eEibach ERS race spring design: Integrates with Eibach’s comprehensive coil-over spring system for custom chassis setup requirements.\u003c\/li\u003e\n\u003cli\u003eConsistent manufacturing quality: Series production helps maintain low tolerances, repeatable performance, and dependable spring-rate accuracy.\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":67581161341180,"sku":"0400.200.0850","price":109.79,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/c24c7ce5c049c03c6a9b0b46035ed1bd_2403a36d-5c53-481a-b4a4-5b7f1de2c140.jpg?v=1790406068","url":"https:\/\/diycustoms.store\/products\/eibach-ers-4-00-in-length-x-2-00-in-id-coil-over-race-spring-850-lb-in-part-eib0400-200-0850","provider":"diycustoms.store","version":"1.0","type":"link"}