Welcome to the forum 11zr1. Nice color. The black headlights realy pops out. Before picking up my centennial, I was looking for a yellow car, I was so close to buy it that I already had change my tool box for a yellow one ( the snap on guy thought I was crasy), then I saw a 2012 Z06 centennial aaaaaaaaaaaaggggggggghhhhhhhh..... it was over for me, iI was hooked on the centennial package BTW still have the yellow tool box, impossible to miss a fingerprint, when someone borrow one of my tool, I can find who it was
My friend had a 2009 with the 2 cats exhaust system like yours. He installed a set of kook headers + X pipe and he kept the original mufflers. It was just a little louder when the flap were close, just a nice rumble but way louder when they where open.