Anyone running an Invidia N1? How loud is it? I heard one on a beat to hell civic a few weeks ago, but I dont know if it was really loud (and buzzing) because of the crap car it was on, or if its the way the muffler is.

 

More than likely its gonna be loud the real apex n1 is kinda loud, much less a knock off. If you want something quieter go with hks, greddy, or apexi and some skunk2s