BangNgears

Before some people get all worked up about this already being posted, just hear me out. I just picked up a stillen cat-back exhaust off of a 2000 max se. I need to speak to someone who already did the 5th gen exhaust swap to a 4th gen. If anyone can let me know what type of mods will need to be done to fit this into place it would be greatly appreciated. I got a killer deal on this exhaust that is the only reason why i want to put it on. Also about how much would a shop charge for this with labor.
thanx in advance.