Koni 8040-1364sport Rear Shock absorber Chevy Cobalt 05-09.  

Just added a set of lowering springs. Well why not purchase the ultimate in ride control.   

The 8040-1364sport rear shock absorber works best with all lowering springs.  Yes these yellow shock absorbers are adjustable.  You can dial it in for the ideal ride quality for the situation at hand.  The Cobalt rear shock absorber is externally adjustable with a turn of a knob, a technique borrowed from Formula 1 Racing.  You will be able to switch back and forth in most cases in a matter of seconds, from comfortable touring to a more firm setting for a sporty drive.  Turn the knob clockwise for a softer ride and counter clockwise for a firmer ride.  This shock absorber focuses on exceptional road handling combined with various levels of comfort and 5 levels of adjustability using an external knob.

They have been in business for over 150 years and involved in automobile dampers since 1932 and has produced adjustable telescopic dampers since 1945.  As the makers of the industry's very first adjustable shock absorber, they have long demonstrated that product improvement means product innovation.

Fine tuning your ride is easier with this adjustable rear shock absorber.