If you want a Radical sounding Cobra then the ATAK is the one to consider. The Borla Atak catback system (Acoustically tuned applied kinetics) is one of the loudest systems offered for The Cobra. It has a very aggressive race car growl sound and lets everyone know that you are in the area. This kit is constructed from 2.5" high quality stainless steel finished off by 4" chrome tips and some very high flow ATAK mufflers. This Catback will shed some weight as well as increase hp and tq.
If you want your Terminator to be loud and one that everyone recognizes and hears coming then look into the Borla ATAK!