To the people who sound deadened trunk cars...

[CJL 10+ year member]

To the people who sound deadened their trunk cars besides the exterior rattles,what other differences did you notice?

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[chartman18 10+ year member]

I'd deaden the whole car to get serious difference in sound. The trunk helps, but then I didnt like it enough so I got my whole car deadened with Dynamat.

 

[CJL 10+ year member]

what did you notice about the sound different after you did the whole car?

 

[Flipx99 5,000+ posts]

a) I think it is louder inside

b) loud inside, can't even tell I have a system if you were 3 foot from the trunk in a parking lot.

 

[CJL 10+ year member]

did you notice any difference in SQ or deep bass?

 

[azbass 5,000+ posts]

less road noise. and a louder sounding system.

 

[azbass 5,000+ posts]

try it for your self.

 

[Flipx99 5,000+ posts]

did you notice any difference in SQ or deep bass?

not really...just louder. Also I have to unlock my trunk, then lift. It doesn't lift automatically anymore.

I would reccomend it. It kind of "completes" the system. Not as important as an amp or HU, but something to definitely do once all that is installed.

 

[filtor1 10+ year member]

I have roughly 240sqft of Stinger Extreme Roadkill in my trunk car. I noticed the biggest reduction of road noise from the floor pan and b and c pillars being done.

As far as sound, the increase in midbass response was very noticable after doing a layer on the doors skin and another layer on the inside. I chose to do all four doors. I suppose it all depends on what your goals are.

As for the trunk, I put 4 layers on the lid, 4 more on the sides (L&R), and a single layer on the trunk floor. The top side of the rear deck and any spot I thought would benefit from it.

At a minimal sound level, comfortable to me, I can step out of the car and close the door and only hear a muffled sound from the mids and highs. The only thing I hear from the subs is, when at higher volumes, the spoiler light rattles. Inside though, the sounds is soo much better. Everything is cleaner. No panel vibrations.

 

[Flipx99 5,000+ posts]

I only did 2 true layers from comp reasons although it does overlap in 3 in some small places.

I did the trunk, back of the trunk, sides and rear deck.

 

[jacka 10+ year member]

less road noise. and a louder sounding system.

same here. didn't help my exterior rattle since i have a trunk that opens with a handle rather than a pop by unlocking, lotta mechanisms shaking there, believe me i tried foam and everything, doesnt help. sucks for me. but yeah, do it! i did all four of my doors too and i noticed less road noise too. sound deadening is well worth it if you have the time.

 

[Flipx99 5,000+ posts]

sound deadening is well worth it if you have the time.

It is a rather tedious process without an "impact" reward. Don't get in a hurry or get bored with it. Get a friend to do the other side and yall can just chill, talk, etc and makes the process a lot easier/better.

 

[iagrdshaka 5,000+ posts]

less road noise

x2 but I'm not sure if the deadening helped or hindered how loud my subs were...//content.invisioncic.com/y282845/emoticons/goodorbad.gif.fe1f80382c74d93547176ee10a15b645.gif

 

[chartman18 10+ year member]

For me, doing the whole car in Dynamat improved the bass 'feel' and sound, and it makes the highs and mids sound much cleaner, and less rattle from my doors and trunk spoiler/lid. As for stepping outside, it really does sound different, you dont hear the 'ehh ehh' kinda rattling from the subs, its more muffled and quiet, and less chance of annoying cops, lol. When you open the door and stand near it with the subs loud, you can 'feel' it come out at you if that makes sense. But overall, it increased everything noticeably, make sure you do the roof and floors too. I cant live without deadening now because I hated the rattling before. Im going to do a second layer with eDead v4, to go over the Dynamat.

 

[ssj2xxgotenxx 10+ year member]

The trunk lid closes on it's own with a deeper thud, as compared to a hollow tinny sound.