ok so right now i have true dual exhoust with some kind of raceing muffler that has a deep roar till high rpm's still have the stock cat pipes i want to know on my set up what will give me the deepest rummble dont care how loud want that crazy deep roar and i know it will never sound like a v8 so is it flowsmasters thershwelds maganaflow or what (sorry cant spell to save my life)