wow that video helped so much more! im trying to find a louder deeper exhaust and i almost was about to go with a dynomax exhaust and it would only be like 330 plus tax. but apart from all of the different videos i have looked at, im still not 100% sure. only cuz im sure you know before you bought your corsa that it sounds completely different in a video versus real life. was the $550 at summit for the db or no? and i would say im pretty new at all this struck stuff, i use to drive a custom vw gli turbo and its alot different that a truck.lol so whats the best was to get a deeper "throaty" sound, bigger tips like 5-6 inches vs. the 3-4? also, what looks better, double output by each wheel, dual output on the stock side or single on the stock side?