Question about Skunk 2 Silencer

Hey I just had a Skunk 2 catback system installed and I decided to leave the silencer out to see how it sounds, now im curious as to what it might sound like with the silencer on, its really bassy and low now, and the silencer does not increase performance correct?

Also I have a small problem of it leaning slightly to the right and touching some of the bumper, melting it in the process, Is there a way to sort of straighten it out or do I just push on it a bit or do I just let it settle where it wants? Thanks.