Because we leave extra room in the bolt holes to get everyting straight because of differences in different cars, You can easily have the X-Pipe clocked all the way to the right causing the mufflers to end up off. All you need to do is loosen the front X-Pipe bolts and clock the X-Pipe to the left. It might be easier since it is all bolt up and you do not have a lift to just pull down on the drivers side rear hanger. I am sure that either will give you good results.
:x-pipe. I haven't had time to try it yet. Let me know if it works.