370z Interior Hatch Rattle (All Plastic Trim Removed)

Raeshlavik

When I was running the AAM shorties I had gawdaful buzzing in the car as well... Even the headliner would buzz.

A few things I found that lessened the buzz were removing the tin heat shield above the original muffler as it's so thin it acts like a resonator. I also glued some thin closed-cell foam to the back of the license plate and trimmed to fit.

While this helped, I was never really able to kill the buzz, and after about 500 miles of dealing with it I pulled the AAMs and went with a Beluga Racing axle-back.