H&R 2.5 inch ID Single Race Spring Length 8 inch Rate 400 lbs/inch - R25080400 fits_2015-2021`Ford`Mustang Includes adhesive reflective Air Box

Includes adhesive reflective Air Box Heat Shielding to help maintain low intake air temperatures

and Eibach springs on the 2nd clip

Fits E39 Chassis BMW M5 only

The upper mounts have been configured to provide maximum strength and durability

H&R 2.5 inch ID Single Race Spring Length 8 inch Rate 400 lbs/inch - R25080400 fits_2015-2021`Ford`Mustang Includes adhesive reflective Air BoxH&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