H&R 2.5 inch ID Single Race Spring Length 12 inch Rate 550 lbs/inch - R25120550 fits_2014-`BMW`I3 it's useless

it's useless

BKK001 is a packaged solution designed to improve performance and enhance the driving experience of your vehicle

but from the factory

Outflows Stock By More Than 40 Percent

H&R 2.5 inch ID Single Race Spring Length 12 inch Rate 550 lbs/inch - R25120550 fits_2014-`BMW`I3 it's uselessH&R 2. 50" I. D. Race Springs are made with extremely high tensile strength wire alloy which allows the use of a thinner wire. Manufactured using advanced materials and precision technology in Germany, H&R 2. 50" I. D. Race Springs are crafted from special lightweight (hf) 54SiCr6 spring steel. For any given spring rate, they are on average 15% lighter and have 10% more travel than competitors' springs. Main springs range from 6" to 18" in length and