The muffler has fujitsubo on it... and its rather quiet. It doesn't have a raspy/barky noise... more a muffled tone if you get what i mean. I'm unsure as to whether its custom or not, when i originally purchased the car, the exhaust hung quite low. I had it moved closer to the undercarriage, so perhaps since it doesn't quite fit or hang correctly somewhere it may be off the shelf (however that's a wild, uneducated guess).
reading the above posts, perhaps this exhaust maybe worth keeping??