Exhaust opinions

[MaFaLu]

Gday guys,

Is there any difference between a VR calais exhaust and a Toyota Lexcen VXI's exhaust? only reason i ask is because i pulled my exhaust off of my Lexcen that had twin center mufflers and 1 rear muffler and went the the wreckers, found a VR calais and got the exhaust off of it. I did this only to find that the exhaust off of the car at the wreckers was different. Its the same from the center muffler back, but from the front of the muffler where the pipe goes off to bolt up to the cat is all different (pretty stupid mistake not to check i suppose).

Ive got some pictures of the old exhaust, which was completely shagged (pipes fell out of the front mufflers haha) and a picture of the new one hanging underneath the car. My main question is, should i get a pipe made, and weld it onto the front of the first muffler so that it will bolt up to the cat, scrap the system i got from the wreckers and buy something different (dont have the $$ to buy anything decent) or are there any other options that could work?

Thanks