Hello i'm a new member and I am wondering in what ways i can make my muffler more quiet. I have put steel wool inside of it, and that only did a little good. I have seen longer mufflers (about a foot and a half) and i'm wondering if they would be more quiet? If there is another supplier I could buy a muffler from, please let me know. Currenlty I buy my kit from livefastmotors.