Muffler
If you're interested in sound AND performance, don't waste your money on just the muffler and get an entire cat-back kit.
Problem with coming onto a forum and asking "Which muffler sounds best" is that you're going to get nothing but differing opinions - all of which will probably differ from yours when all is said and done. The best thing to do is to go on YouTube and look up "LT1 exhaust," listen for yourself, then make your own decision.

