Well got tired of all the rattles and really sick of how hollow my music sounded so i decided to hit up ant for some SS Damplifier Pro in black. Here are some pictures. I did the rear hatch and both doors.
I have had my hands on most of the sound damping available and second skin is by far the best I have ever used. I have the damplifier pro in my truck and my stang.
damp pro has slightly thicker foil and butyl content...so based on thickness i believe it would be best. but at that price i'd probably go for the dynamat although i'm a big stickler for customer service and Ant at Secondskinaudio.com has that
It is going in a supercharged v8 mustang. Lots of heat due to the engine and loud exhaust too. It needs a great amount of sound deadening. If it is thicker and also built better then that is what I need.
As far as my mazda 3 I will stick to the dynamat prolly. I don't need that high quality stuff for my car it is already super quiet.
Kenwood Excelon x592
x200.4(in process of repair OMFG YES)
rsd65cs front
rsd65cs rear
x1200.1
2 rsdc124
using zx350 until repair of x200.4