Took me a month to finalize the exhaust upgrade. Jak Stoll made me a complete 3" system, but it was making an annoying low frequency drone, resonating through the whole car. Turned out it was the resonator that was making all the noise. I ended up getting a round Magnaflow muffler with a straight through perforated core, and replaced the resonator with it. A pretty big one, 6" wide and 30" long, the longest I could fit in there.

Much happier now. The installation gallery is online, as usual.