DEI door sound damping kit for all generations
DEI door sound damping kit for all generations
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Description
Miata doors aren't big relative to most car doors, but they're still big expanses of mostly flat sheet metal, which makes them very prone to resonance and rattling - knock on the outside metal and take note of how loud and rattly it is. This kit, like our sound damping kit, uses pre-cut pieces of DEI's Boom Mat sound damping material to absorb those vibrations and quiet down your interior. They also make a big difference to how good your music sounds (since your speakers won't rattle the doors anymore), and give a solid "thunk" when you close the door, as opposed to the normal rattle. Easy install, just remove the door panel and the plastic sheet behind it (watch that black goo, it gets on everything), firmly press the pieces into place, re-assemble, and enjoy your quieter car. Includes enough pieces for both doors (one kit = one car).
This kit is designed for the NA and NB, but will work for the NC and ND as well with a little trimming (it's not too bad to cut with a razor blade or good scissors).
Boom Mat is a premium quality sound damping material that keeps interior panels from vibrating and generating noise by trapping that noise between an asphalt-free butyl lower layer and a 40 mil (.004" / .1mm) thick aluminum top skin (.080" / 2mm thick in total). Since Boom Mat doesn't need to cover the entire area to do its job, you spend less money and add less weight to get the job done.
While this kit doesn't make a huge difference to the decibel measurement, it's in the right range, and keeps the metal panels from acting as transducers. Which makes the car much more livable an improves the sound of the stereo.
Instructions
Shipping
$9.99 flat rate shipping. Orders over $40 ship for free in the US!
Details
There are no shipping restrictions on this item.
What does it fit?
Emissions
Emissions do not apply.
Warranty
lifetime
SKU
Wow, I really impressed with this. I bought this on black Friday and installed today on my NC1. Took the door card off, and the black plastic liner behind the door card - lots of screws. Pressed it up against the inside of the outer metal of the door. I had the window up...I think this is required. Put one boom mat behind the speaker and one one further back towards the latch up higher in the middle - next to one of the foam blocks. I did not have to cut the boom mats. Put the tape in a few random spots. The results are nice. The The drive is quieter, speaker sound is richer and at a lower volume level and the doors do close with a more satisfying thud.
I haven't had a chance to get this project for my Miata, once the weather changes I will be full steam ahead.
Huge improvement on outside road noise. It’s a little odd the first drive, and it was like putting on noise cancelling headphones. I got a fraction of the tire noise and music from surrounding traffic. I did this kit 1 week before I did the rest of the car, and it makes your intake and exhaust more noticeable, as all the sounds from the sides get quite a bit quieter. Absolutely worth it, and this is a great kit for basically any car. It’s not vehicle specific!
This company has been great with the recommendations for my car. This was easy to install and it made the car quieter and speakers sound better. Hope that they have more NC stuff coming soon.
Was not expecting how big of a difference this would make. Closing the doors feel so solid and satisfying now. Even the vibrations from pushing the key into the key hole feels so buttery and good.
It will make you think you've gone a little insane though because non of my passengers seem to notice the difference. And I just end up slamming the door over and over again to show them how nice it feels.
Even though others may not notice the subtle difference, you as the owner definitely will.