The Baer Brake Eradispeed1 Rotor Upgrade features one-piece, larger than stock diameter rotor and caliper relocation bracket and is designed to offer increased brake torque and reduced stopping distances vs the stock rotors. The Eradispeed1 system is a direct bolt on system that retains the OE caliper with the use of the included caliper relocation brackets. The purpose cast comes standard with a zinc-plated, cross-drilled and slotted friction surface that reduces gasses and dust between the pad and rotor during braking for a consistent pedal feel and reduced brake fade. Along with an improvement in braking performance, the Eradispeed1 upgrade also offer an improved, eye-pleasing appearance over stock at a fraction of the cost of a Big Brake Kit. Fits 2005-08 Chevrolet Cobalt SS