I recently went on a quest to quiet down my 03 on the inside. I absolutely love the way the car sounds, but having to yell to communicate has gotten a little old. To attempt to get the best of both worlds, I went looking for a way to quiet just the inside of the car. The obvious choice was to add more sound deadening. Dynamat was out due to cost. From here I went to mcmaster.com and looked for sound deadening material. I found something I though would work, part number 5692T61 and ordered 22ft^2 of it (approx enough to do the trunk with a little left over). For comparisons sake, 20ft^2 of dynamat xtreme is $190 and 22ft^2 of this stuff was $43. Today I went out and cut a few pieces to cover the trunk.
I removed everything from the trunk space (including the side carpeting), and put down a few pieces. I ended up not putting any in the actual spare tire hole (got hot and decided to try out what I had done). I put the trunk back together and just got back from a drive. While it's not as quiet as a stock car, it is noticeably quieter. Mostly muffled the exhaust noise coming into the cabin. Road noise is still very apparent. I got too excited and forgot to take pictures (sorry).
I probably have 8ft^2 left so my next step will be to cover the spare tire hole, and the wheel well tops in the trunk. If I'm still not happy and I decide to get frisky, I might try and take up some of the carpet and install it underneath (this prob won't be for a while due to funds and time).
Overall, I would have liked for it to have gotten quieter, but this is a good start. I'm going to try and do the spare tire hole and the wheel wells tomorrow, so I should be able to get picture then. For the record, I tried to use a decibel meter on my iPhone to measure the difference, but it just bounced around a lot. Didn't take any video before either so our of luck on that end as well.
I removed everything from the trunk space (including the side carpeting), and put down a few pieces. I ended up not putting any in the actual spare tire hole (got hot and decided to try out what I had done). I put the trunk back together and just got back from a drive. While it's not as quiet as a stock car, it is noticeably quieter. Mostly muffled the exhaust noise coming into the cabin. Road noise is still very apparent. I got too excited and forgot to take pictures (sorry).
I probably have 8ft^2 left so my next step will be to cover the spare tire hole, and the wheel well tops in the trunk. If I'm still not happy and I decide to get frisky, I might try and take up some of the carpet and install it underneath (this prob won't be for a while due to funds and time).
Overall, I would have liked for it to have gotten quieter, but this is a good start. I'm going to try and do the spare tire hole and the wheel wells tomorrow, so I should be able to get picture then. For the record, I tried to use a decibel meter on my iPhone to measure the difference, but it just bounced around a lot. Didn't take any video before either so our of luck on that end as well.