Well i been searching the forums on here for exhaust ideas. Now is the resanator the cat? If not where is it located on exhaust. My 97 gtp stock exhaust does have some sound to it i was wondering if i just replaced the resanator with glasspack will it make my exhaust alot louder. I want a nice deep tone and a good rumble. And since chambered ones seem like they sound like crap could i just replace mufflers with glasspacks or will that not pass emissions? Thanks for the help