Hey, i recently purchase a used set of corsa extremes and after installing they are extremely quite compared to my old setup (outlaws, stock resonators, and o/r h). From reading threads they are suppose to be similar in volume as outlaws. Obviously videos dont do any justice but they even seem overly quite outside the car from what i was expecting. Is there any way to confirm which a/b is which? I want to make sure i didnt purchase sports on accident. Thanks.