You will spend forever on YouTube listening to different exhaust sounds. I did it and it drove me crazy because I couldn't make up my mind. Just like the guy said above it's not very accurate. Everything sounds different in person. If it were me I would get an axle back first. I wouldn't go x-pipe with stock mufflers. Check out the pypes "pype bomb" for an awesome axle back. Makes the car sound really mean without taking the cats off. Then if you want it louder or to have a different tone go with the x-pipe.