I've done a bunch of research on the Cobalt SS S/C already and will be making some custom parts based on my ideas. One of these parts is an exhaust system, and I'd like your inputs on it. I know a bunch of people here already have exhaust systems, some bolt-on, some custom, but would like the input from every perspective and experience.

Maybe describe sounds you like, looks, materials, muffler styles, power gains expected, etc. Please keep your ideas realistic though--especially in the power gains criteria, LOL.

Thanks in advance!