Thanks, everyone, for all the help.

It looks like the Dynomax Super Turbo 17747 may be the one to get. But the tailpipe question: is it a big deal? I mean, is it something I should also purchase, or can the muffler shop handle that?

Also, I saw this on the Advance Auto Parts site - I assume this is the Dynomax Super Turbo 17747, but it's hard to tell... The part number says 17747, but there isn't any additional info. Plus, it's listed for sale at $39.99, which is about $20 cheaper than I've seen anywhere else. But when I do the "will this fit my vehicle" thing, it says "No." WTF?

Thanks again., everyone. I'd be lost without your help...