I ran one of those cheapo turbo mufflers, and after about 8 months it started coming apart. I've been running glasspacks since without issue, but they're loud and raspy in the uppers revs. I snagged a magnaflow new off ebay for less than $35 bucks, but I'm not going to put it on till I put on my other header. I personally don't like flowmasters, but that's mostly becuase if you have louder exhaust people usually say "you must have flowmasters!". I really like the design and quality of the magnaflow though, very well built.
