Reviewed By Robert E (CHAMBERSBURG, PA) Reviewed for a 2009 Pontiac G8 —2/20/2013 11:45 PM
I wanted to have a low quiet rumble at a idle, however if I jump on it I want you to know I am not playing. I live in a apartment complex and work nights. I cant bother the neighbors but I wanted a better sound and performance. The Dynatech Super Maxx gave me just that. Two thumbs up.