H&R 60mm ID Single Race Spring Length 250mm Spring Rate 80 N/mm or 457 lbs/inch - RF250080 fits_2011-2017`Mercedes-Benz`CLS63 --Mishimoto's all-aluminum coolant overflow tank

--Mishimoto's all-aluminum coolant overflow tank includes a CNC-machined billet cap with an O-ring seal

Tip features a drain port on the bottom to keep rust and corrosion away

This pair of adapters is CNC-machined from billet 6061 aluminum and features a dovetail O-ring groove for easy installation and leak-free operation

Requires no additional tuning

2016 Dodge Challenger R/T Scat Pack 6

H&R 60mm ID Single Race Spring Length 250mm Spring Rate 80 N/mm or 457 lbs/inch - RF250080 fits_2011-2017`Mercedes-Benz`CLS63 --Mishimoto's all-aluminum coolant overflow tankH&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