and other thing that made me mad was he had a hatch and i didnt know at the time that hatches get stupid loud and i had a trunk car..so be sure to put that in your mind when you hear it. if its a suv or hatch dont expect yours to slam that hard lol but yeah i say do it. even if it isnt that much louder you get a MUCH better sub.. and dont be scared to make him take it out of the box and free air it and stuff. if your buying it make sure he does what you say if not. dont buy it lol