H&R 2.5 inch ID Single Race Spring Length 12 inch Rate 400 lbs/inch Exterior Styling>Side Skirts 0 / +45 Offset /

0 / +45 Offset / 4x100 BC / +45mm Bore / Machining and Hyper Platinum Black

MB4-HDSS kit features ACT's most popular Heavy Duty pressure plate and most popular street disc

Mild steel construction allows them to crush instead of shattering if overloaded

When using Fluidampr High Strength Bolt Kit (#300014)

Brembo 92-00 Viper RT-10/GTS Front GT BBK 4 Piston Cast 2pc 355x32 2pc Rotor Slotted Type1-Silver

H&R 2.5 inch ID Single Race Spring Length 12 inch Rate 400 lbs/inch Exterior Styling>Side Skirts 0 / +45 Offset /H&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