a serious problem help???
 

i was traveling down a nice stretch of road today and i have been noticing a real sluggish feel like i mean to the point of having to down shift on a slight incline ...... but i didnt really notice that it was a problem ( considering i only had the car for 2 days ) and while down shifting the car got super loud abd it was a huge increase in power.... i pulled over and checked out the exaust to notice that the flange right after the turbo to the cat was busted off clean i was running open turbo ..lol well not funny but .. ow my question is .. how do i get the down pipe out of my car .. i tried it all day and could not get it out i even took offf the bottom part of the exaust to see if i could pull it through and no luck .... someone please help me on this i want my ride back .. and any suggestions on what to get in place of the old busted cat.. i was thinking that the cat must be blocked in order to get that to happen is this possiable??????? oh and i have a 99 a4 1.8t quattro