I'm looking for a new muffler to replace the stock on my V6 auto (2005). I see all sorts, but have no clue which one to get. I want it just a little louder but I don't want the cops to fine me or anything like that. Any suggestions for a mellow growl that won't wake the neighbors? I'd like to try and install it myself and I saw a flowmaster that says you just need to unclamp the old and clamp in the new...no welding needed? Is it just that simple? I don't want to spend a lot of money either and saw a few cheap ones for 150. Help!