[cornflakes]

Ok, when I was at the shop again to get my new spoiler installed, I saw underneath the car again and the resonator is definitely gone. A straight pipe was welded in its place. That's probably what was making most of the noise, and not the 2nd welded on pipe with the valve in it.

Makes sense now. That's why I thought it was weird how a simply 2nd pipe could make so much noise. It's not really the pipe. It's the fact there's no resonator and the muffler side will still be loud but it at least makes it "less" loud. But then when the valve on the right side opens up, it's directly going out without any resonator and muffler, that's why it's so loud.

All this time, I thought there was some weird physics involved in adding a 2nd exhaust pipe that was behind the LOUD noise. I knew that couldn't be right.