Talk about a complainer!
If Magnaflow made a catback for our car it'd cost twice as much as what you paid.
I have found that the pre-made expanded pipes never fit exactly perfect without a little finessing as the stuff is aluminized steel which is softer than stainless so it often get small dents at the ends. And you don't want the pipes to fit loose like Madonna's cooter as then the thing will have exhaust lekas and sound like crap.
With a little effort you could EASILY put this together.