The Mishimoto performance aluminum radiator for the 2005 - 10 Chevrolet Cobalt SS is the ideal upgrade to the stock Cobalt radiator.The last thing you want is to be limited by the factory unit during a hot day at the strip or when you're stuck in traffic.Our engineers know that, and our design reflects this by utilizing an all - aluminum design to increase cooling efficiency.With polished end tanks and a signature Mishimoto magnetic drain plug, the Mishimoto Cobalt SS radiator looks as good as it performs