{"product_id":"eibach-ers-4-00-in-length-x-2-25-in-id-coil-over-spring-1-200-lb-in-rate","title":"Eibach ERS 4.00 in. Length x 2.25 in. ID Coil-Over Spring, 1,200 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 Coil-Over Spring is a precision-engineered racing spring designed for demanding motorsports and performance suspension applications. Part number EIB0400.225.1200 combines a 4.00-inch free length, 2.25-inch inside diameter, and 1,200 lb\/in spring rate for applications requiring firm, consistent suspension control.\u003c\/p\u003e\u003cp\u003eEibach ERS springs are manufactured in repeatable series production using extensive spring-making expertise. This process helps deliver a highly linear spring characteristic, tight tolerances, and dependable performance across repeated use. The result is a race-ready coil-over spring that supports predictable handling, precise vehicle response, and consistent suspension behavior.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBrief Description:\u003c\/strong\u003e A high-rate Eibach ERS racing coil-over spring for compatible 2.25-inch ID suspension systems and performance applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Product Specifications \u0026amp; Technical Data:\u003c\/strong\u003e\u003cbr\u003eBrand: Eibach\u003cbr\u003eProduct Line: ERS\u003cbr\u003ePart Number: EIB0400.225.1200\u003cbr\u003eApplication Type: Automotive racing and performance suspension\u003cbr\u003eSpring Style: Coil-over spring\u003cbr\u003eFree Length: 4.00 inches\u003cbr\u003eInside Diameter: 2.25 inches\u003cbr\u003eSpring Rate: 1,200 lb\/in\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e One Eibach ERS coil-over spring. Verify spring dimensions, rate, and suspension compatibility before installation. Vehicle-specific fitment information was not provided and should be confirmed with the suspension manufacturer or installer.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRace-Developed Performance: Eibach ERS springs are designed for motorsports and demanding performance suspension applications.\u003c\/li\u003e\n\u003cli\u003eConsistent Spring Rate: Series-production manufacturing supports repeatable, predictable spring characteristics.\u003c\/li\u003e\n\u003cli\u003eLinear Suspension Response: The spring design helps provide controlled and consistent handling behavior throughout suspension travel.\u003c\/li\u003e\n\u003cli\u003ePrecision Manufacturing: Tight production tolerances and Eibach engineering support dependable fitment and performance when matched to a compatible coil-over system.\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":67581334552828,"sku":"0400.225.1200","price":109.61,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/c24c7ce5c049c03c6a9b0b46035ed1bd_6aab29cf-1a63-4f0e-9c42-994c7a0ddd87.jpg?v=1790407042","url":"https:\/\/diycustoms.store\/products\/eibach-ers-4-00-in-length-x-2-25-in-id-coil-over-spring-1-200-lb-in-rate","provider":"diycustoms.store","version":"1.0","type":"link"}