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Old 09-08-2015, 04:07 PM   #8 (permalink)
mishuko
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Quote:
Originally Posted by 370bluez View Post
The shock towers were solid metal and not paper thin 1/16" of an inch like the wheel wells and the bottom of the trunk. I got the wheel wells with two layers on the front and the back. On top of the factory material as well as some surrounding areas...

I'd like to see if someone actually got measurements of sound reductions. It is easy enough to go back and add more, but I don't want to waste time and add unnecessary weight. Covering the entire trunk etc is not wise just for the sake of covering it doesn't make sense.
to be fair you should have hit every piece of metal in your rear hatch so you didn't have to go back. all the metal parts will vibrate and send out the sound.

the dampening material adds mass to reduce vibrations and dampens the sound a bit. i think you would have hit your 5-db target if you did the entire hatch instead of portions but that's me speculating.

i'd suggest searching the audio section... tons of good material there to kill some time reading and learning
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