Hey guys I have a question....Well heres the deal, My lil bro gave me his GTP catback to me since i still have the stock exhaust on my REgal...Now I remember somebody here had a gtp catback on their regal but I don't know who that was...anyways I'm wondering how hard it will be to put the catback on to my car...I realize that I only have a single outlet on the back but I can moddify the back bumper to accomodate both muff's from the gtp catback....Will I have to take it to a muff shop Or will I be able to mount it myself...I havent gotten underneath my regal yet since I still have to finish the GTP (needed some work) Just want to know what I'm getting myself into. i was thinking that worst case scenario I would just use the y pipe and duals to make my regal look like a gsx clone 
