to me, undercoating is not for sound isolation but it is for rust protection from salty roads and rocks chipping away at the metal....that alone is worth it !!

this stuff is made for noise....
 

click on this link and watch the Jay Leno videos in the bottom right corner of the page.
The Official Dynamat Website
please post your results......thanks

The Dynamat route is both expensive and labor intensive. Let alone taking the your Z apart to do it. Do you work for Dynamat?

This is the third time I've seen him post the exact same blurb. And he doesn't even know how to put a real hyperlink in. Check out the attached screenshot.

:ban:

I just did it this weekend. I took everything out of the trunk and covered as much metal as possible (including the wheel humps, front and back) and didn't notice any difference at all.

Most of the sound insulation actually seems to come from just putting the mats in the back.

The next thing I was thinking would probably be easier and better is just more of the 3/4" or so thick insulation/matting that seems to be under the passenger compartment. It may not PREVENT noise, but it may do a good job of absorbing some of it...

lol....thats funny :bowrofl:

click on this link and watch the Jay Leno videos in the bottom right corner of the page.
The Official Dynamat Website
please post your results......thanks

You should make that your new sig. :rofl2:

I'll be undercoating mine not for the noise, but because this will be a daily driver in Iowa.