Shop near my work is going to build me a cat-back. 2.5" pipe size. There is going to be a Magnaflow muffler diagonally underneath the car with smoother bends, it will exit the same place. The muffler is a 3"in, 3"out, so they are going to flare the pipe to a 3" right before the muffler entrance, and finish with a raw metal 3" tip.
After this, I will have my friends put the FM downpipe back in, as a catless unit. It will basically be a straight pipe but with the Magnaflow.
Curious how it will sound . This is going to be built tomorrow. Cost is $320 with the muffler, welds, install, seems like a great value.
What it should sound like:
http://www.youtube.com/watch?v=9cZ7f0lry7w