lol i buy the cheap mufflers then flip them and make money..well i do that with alot of shit lol... like this...buy a cheapo muffler on there that cost like 20 to 30 bucks shipped..flipe it for around 50 -60 or more...easy money..just find some dumb ass..usually younger kids work the eaisiest and tell them it will add like 20 or 30 HP and they will fall for it everytims..io have spent like 100 bucks and made almost 300 off of that 100 lol