AEM announces its new Cold Air Induction System for the 2008 Chevrolet Cobalt SS 2.0L Turbo part # 21-682. The largest power gains for the 21-682 are 17.3 horsepower at 6,000 RPM and 14.7 lbs/ft of torque at 6,000 RPM as measured on the company’s Mustang Dynamometer.