I dunno about you guys but I have found the P5's interior to be quite loud, especially when you have low profile tires. I searched around, and wanted a solution that would quiet down the interior without breaking the bank. Coming from the car audio world, I immediately thought of Dynamat, however it is expensive and costs a lot to ship if you don't have a local hookup (which I didn't). Midway through my search I came across this link:
http://mikemercury.home.att.net/sound.htm
This Corvette owner was on the same quest. He used some material called duct insulation from Frost King, made of similar materials that Dynamat uses, and not to mention it is about 1/4 the price of Dynamat. I searched and found that Home Depot sells it the cheapest at $15/roll which measures 15 feet by 12 inches (which is ALOT). I went to Home Depot and bought a roll:
http://www.homedepot.com/webapp/wcs...og.beans.EndecaDataBean@518d91ea&ddkey=Search
This stuff is approved by the FAA to line the interior metal casing of private sized airplanes, so it must be good enough for Mazdas! (hump)
From there I removed the rear door panels and lined the inside of the door shell with the material (make sure to roll your windows up so you have access to everything) and rolled it down with a screwdriver end (you can use a wooden roller too). Here is how it turned out:
http://www.youtube.com/watch?v=DwwAd8pvTCU
I didn't get any pictures during the process but here is another video showing how I installed everything:
http://www.youtube.com/watch?v=ODGT6jmRuK0
Since I removed my side moldings, the doors with dinky and hollow sounding. After installing the duct insulation into the door shell, the doors sound solid. Sound quality of my speakers were also improved and bass hit slightly lower. I plan on doing my whole interior with it soon but for now I notice a big difference with just the doors alone. The one roll I got was enough to cover the inside shell of all 4 doors with 4-5 feet left to spare. I imagine you would need 2-3 rolls total if you wanna do your doors, and floor (I plan on doing that soon as well).
I also installed some on the back side of the door panels, this made a very big difference in vibration related to hard hitting bass:
So for around $50 (if you buy three rolls, they are $15/each) you can make a huge difference in reducing road noise, and for those who are weight conscience each roll only weighs around 4lbs, which is quite lighter than Dynamat also. I hope this helps and if this helped please share your experiences with everyone on here.
-Matt
http://mikemercury.home.att.net/sound.htm
This Corvette owner was on the same quest. He used some material called duct insulation from Frost King, made of similar materials that Dynamat uses, and not to mention it is about 1/4 the price of Dynamat. I searched and found that Home Depot sells it the cheapest at $15/roll which measures 15 feet by 12 inches (which is ALOT). I went to Home Depot and bought a roll:
http://www.homedepot.com/webapp/wcs...og.beans.EndecaDataBean@518d91ea&ddkey=Search
This stuff is approved by the FAA to line the interior metal casing of private sized airplanes, so it must be good enough for Mazdas! (hump)
From there I removed the rear door panels and lined the inside of the door shell with the material (make sure to roll your windows up so you have access to everything) and rolled it down with a screwdriver end (you can use a wooden roller too). Here is how it turned out:
http://www.youtube.com/watch?v=DwwAd8pvTCU
I didn't get any pictures during the process but here is another video showing how I installed everything:
http://www.youtube.com/watch?v=ODGT6jmRuK0
Since I removed my side moldings, the doors with dinky and hollow sounding. After installing the duct insulation into the door shell, the doors sound solid. Sound quality of my speakers were also improved and bass hit slightly lower. I plan on doing my whole interior with it soon but for now I notice a big difference with just the doors alone. The one roll I got was enough to cover the inside shell of all 4 doors with 4-5 feet left to spare. I imagine you would need 2-3 rolls total if you wanna do your doors, and floor (I plan on doing that soon as well).
I also installed some on the back side of the door panels, this made a very big difference in vibration related to hard hitting bass:
So for around $50 (if you buy three rolls, they are $15/each) you can make a huge difference in reducing road noise, and for those who are weight conscience each roll only weighs around 4lbs, which is quite lighter than Dynamat also. I hope this helps and if this helped please share your experiences with everyone on here.
-Matt
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