I am looking to get a header back exhaust soon. I was thinking about getting an EMS exhaust but I have some have had negative experiences with them. So, I called Henry's muffler shop in Raleigh off Millbrook rd. The guy seemed pretty knowledgeable and can do it for less money. Any experience with Henry's? Also he was talking about putting on a big body Magnaflow muffler. Anyone else running these?