Eibach ERS Main-Metric Linear Tender Single Coil Spring - 286 lbs/in Rate, 2.17 in. Block Height yellow-speed-dynamic-pro-sport-coilovers 2018 BMW 640i Convertible AWD

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Eibach ERS Main-Metric Linear Tender Single Coil Spring - 286 lbs/in Rate, 2.17 in. Block Height yellow-speed-dynamic-pro-sport-coilovers 2018 BMW 640i Convertible AWDEibach'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. Standard Features Provides a Softer Initial Rate