How I started the day, pile of Invidia parts.
Stock exhaust out.
Test fitting the Invidia rear section.
Wait, that's not an Invidia part! It's actually a Magnaflow resonated X-pipe to knock down the rasp and drone. And the front section is from an '09 FX; direct bolt on to the cats.
What it looks like all welded up. Basically what I did was have them remove the stock Invidia resonators which are so small they're useless and weld in the Magnaflow.
All done!
Now that the exhaust is out of the way, on to the rear fenders. And yes, she is taking a hammer to them for clearance. It was the only way we could flatten the fenders fully along with the bump underneath the rear door.
So it was a productive day. With the Magnaflow X-pipe, the Invidia sounds like a really aggressive stock exhaust. It's deeper than the Nismo, and a bit meaner. But at full throttle, it's only a bit louder than stock, and deeper. I'll get sound clips soon, but I personally think it sounds great. Some may find it too mild, but I like it. No drone, it's a tiny bit "boomy" around 2k rpm, but almost impossible to notice in the car. At highway cruising, it's only a tiny bit louder than stock. It sounds "smoother" than the stock exhaust. No rasp at all, no buzziness. So for those of you who think the Invidia is too loud, I'd highly recommend the Magnaflow X-pipe. As a technical note, I had the shop weld on an extra hanger to the right mid-pipe. There is a factory hanger there, but not one on the Invidia. This had the extra benefit of bringing the pipe up enough to clear the GT-Spec lateral brace. Otherwise, it would hit.
Thanks to dlaska for the great deal on the rear section and jmess for the great deal on the 09+ Invidia front section.