Hey everyone!
I recently got an '05 Alabaster Limited crossfire with cedar and black interior.
The issue is that, being 7 years old, i think the cat may be degrading and blowing into the muffler, so there is an incredible rattle around 1400-1600 and 2300 rpm. Its starting to annoy me. I want to do an entire new exhaust. I was thinking of welding 4 universal cats, and then a megan m-rs muffler (link below) all together. I was wondering if anyone has done this or something similar. Hints and tips are always appreciated!

Thanks guys!

Megan Racing