Gotta pay the price for having subwoofers..

[knightsfs4]

Thats not it, I checked.

 

[riceandpho]

it might be the spoiler. or check the buttom weather strip on the the window, with the window all the way up, push down on the window strip at the bottom and see if u find anything, i still have some vibrations even with all the dynamat.

 

[knightsfs4]

I dont think that's it. What mat are you talking about?