Well, finally had a chance to work on the car. I checked the entire system, and the only leak was just infront of the mufflers where the band clamps connected the front X pipe to the mufflers. It was a little leak at the connection points, and the only way to fix it would be to weld the pipes, and I want to be able to break the system down, so I didn't do that. I did notice that under the rear valance, I had 2 major holes in the car body. First was where the car had been hit in its earlier life and never fixed right. The second was on the driver's side right where the exhaust pipe dropped out. It was the inner body panel just behind the wheel well. Both holes vented directly into the trunk. For a quick fix I siliconed some sheet aluminum to them, since fixing would require disassembly of the rear end which I'm not up for right now. After a short ride it seems to have fixed the problem. I'll give her a few more rides before I call it good....next step would be extending the rear pipes.
