Would this work? Exhaust question

I currently have a full borla catback, i am wanting to take off the muffler and put an slp loudmouth I resinator in the place of the borla muffler, the two catbacks almost like exactly the same, with the side cutout style and everything, im just wondering if the resinator is longer or shorter then the borla muffler, also the catback is 3" all the way around is that to large for the resinator?

if the flange bolt patern is the same and since the exhaust mounts are adjustable. I don't see why it wouldn't work.