[desertdave]

If i am using boom mat throughout my interior of the car, is it really necessary to also install the factory style cheap ass paper vapor barrier? I would think the boom mat would do a superior job.

 

[mustang656man]

If i am using boom mat throughout my interior of the car, is it really necessary to also install the factory style cheap ass paper vapor barrier? I would think the boom mat would do a superior job.

the slick paper on the door/windows insulate from the moistuer that gets by the glass in doors and quarters

 

[desertdave]

What about the firewall insulation pad? Is it needed if you put the sound deadener on your firewall?

 

[mustang656man]

firewall pad insulates heat and noise so i would use