H&R 60mm ID Single Race Spring Length 105mm Spring Rate 25 N/mm or 143 lbs/inch - ZF105-025 fits_2012-2018`BMW`6 Series Universal design works with various

Universal design works with various makes and models

50-in thick core maintains boost pressure and consistent power across the RPM range under sustained demand

2013-2015 Mazda MX-5 Miata Club 2

Dual 4 IN Diameter Carbon Fiber 304 Stainless Steel Exhaust Tips

H&R 60mm ID Single Race Spring Length 105mm Spring Rate 25 N/mm or 143 lbs/inch - ZF105-025 fits_2012-2018`BMW`6 Series Universal design works with variousH&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