By drastically reducing the mounting depth, CS-Series Coaxial and Three-Way Speakers will fit in nearly every make and model of vehicle on the road today. The perfect upgrade from your factory sound, a stamped-steel framework supports a rigid polypropylene cone and zero-protrusion PEI tweeters. This simple, drop-in solution delivers acclaimed KICKER performance and durability with outstanding value. Check out the NEW 4×10-inch set for your older GM vehicles.