K&N has designed a performance air intake system for the 2008 and 2009 Chevrolet (Chevy) Cobalt 2.0L. K&N dynamometer tests show a 14.45 horsepower gain at 4600 rpm with use of this K&N air intake modification. K&N tests multiple vehicles for each air intake kit it makes to ensure a consistent horsepower and torque gain. This video demonstrates the steps needed to install a power gaining K&N air intake into a 2008 and 2009 Chevrolet (Chevy) Cobalt 2.0L. http://www.knfilters.com/search/product.aspx?Prod=69-4518TTK