So i'm super excited that my magnapacks came in today. but I do have 1 question. I had a flowmaster american thundercatbak system on when I bought the car. If the mufflers on that catback are clamped on (which i'm not sure if they are or not) Will the clamps just come off and the tubes come apart or is this something I should take to an exhaust shop? All I bought was the mufflers cause I already have stainless piping just not sure if I wanna do it myself or not...