I have Mac Long tubes , catless mac prochamber h pipe , and flowmasters exhaust setup. While cruising I feel like the setup is not at the loudness I desire . Can you guys with experience with borla make suggestions whether to buy the borla stingers or ataks. I have heard some of the videos on YouTube but not with a prochamber . If you have a vid with long tubes and a prochamber with stingers or ataks please link me . Other than that I'll consider advice before I buy