Yes! I finally fixed my annoying rattle.

I had this annoying LOUD rattle at low RPMs that sounded like it was coming from beneath my engine. I finally got my car up on ramps and put my ear up to everything to see what it was and it turns out the oxygen sensor on my header had come loose a little bit and was rattling. I just torqued it down again and the sound is gone! God its good to have that sound gone.