I just did mine. I dont know how to describe the sound at all. Its got more rumble at idle and when you get in the higher rpm band it starts to get a little more high pitched but not to bad a lot more mean and agressive sounding thats for sure. When its cold its really droning and raspy (high pitched). My other mods might make it a little more louder but I highly doubt it. It costs anywhere from 20-30 bucks to have them rip it out of there, if you got the money to spend have them take it out and keep the part, if you dont like it after a month go weld that baby back in. It doesnt sound any different then a civic with exhaust on the coldest day of the year (comparing it to my friends integra anyways) Maybe someone can describe it better then I.