I bought my car with a hudge single pipe exhuast with single exit (cam from Japan like that). Someone had stole the silencer so it was just very loud all the time. It isnt bad if you like your car to be loud as hell all the time but I decided to install my stillen catbacks instead (single exit) just because it not only looked better but I liked the more reasonable tone of the sound and I didnt wanna wake everyone up in the neighbor hood every night I came home. Your choice tho.