hey guys. new to the site. did a bit of navigating but still havent found the exact answer i was looking for. ive seen people say, get custom 2.25 or 2.5 piping (which i have), however, some have said theyve used cheap mufflers ($30 or so auto part store pickups) and have gotten what they want performance and sound wise with a deep tone. others, have mentioned brands like apexi, etc. i was wondering with these more expensive mufflers, is it really worth it in power and sound? if the expensive ones are a way to go, i know i will go for the n1, however due to my money going in multiple things, i didnt want to spend unnecessarily. if the cheaper of brands can give me what i want in hp increase (however many it may be) and a deep tone and not sound like the disgusting hollow farts ive heard around the place, what brand/s would you guys suggest?