The PowerStop Evolution drilled & slotted zinc-plated rear rotor pair for 2009–2010 Chevrolet Cobalt is a direct-fit upgrade that improves cooling and performance. Precision cross-drilled holes and rounded slots sweep away gases, dust and moisture to preserve a clean friction surface while chamfered holes reduce stress cracking. Zinc dichromate plating resists corrosion, and dynamic mill balancing ensures smooth, quiet operation with no modifications required.
Power Stop 09-10 Chevrolet Cobalt Rear Evolution Drilled & Slotted Rotors - Pair