MY FIRST QUESTION i have a 2003 dodge 2500 GAS...not diesel. it has a 5.7 liter hemi. i want to buy one muffler...i know there are magnaflows flowmaster cherry boms Aero Turbine, etc. but i want a flowmaster... now here is what i would like to know.. WHAT IS THE BEST AND THE LOUDEST AND I MEAN...