Doing exhaust on my billy goat sometime soon. Dont know whether to do 1in-2 out flow 40 w/pipe/tips or ypipe 2 flows and pipem outw/ tips. I want it to be loud but not too loud. The main question is since i have one pipe through cat/muffler would that produce enough airflow to cause enough "sound" out of 2 flows or just stay with the 1in2out flow???? Does that make sense-I think i just confused my self???