Originally Posted by amw5
No...it's the SRT catback. However, if you want a deep sound and don't want to spend alot of coin (Borla catback would be my first choice), then a Dynomax Super Turbo would be a good choice for a muffler swap. I had a Magnaflow and didn't like the way it sounded. As far as complete systems go, The Borla had the best sound out of all the catbacks I have heard. I have not heard the Gibson in person, but it should be a very deep sounding exhaust as well...probably deeper than the Borla, but not as loud.
Whatever you get, make sure it's at least 18" long, for anything less is going to create more drone. Over 20" is optimal.
I spoke with a gentleman that worked for Magnaflow some time ago, and in regards to drone, he stated that typically, the width of the case has the biggest factor in how much resonance a muffler will give off. The length will make a difference, but the length affects the pitch more than resonance.